Write the chemical reaction showing how the electrophile for the nitration of methyl benzoate was formed.
Answers
The electrophile for the nitration of methyl benzoate is the nitrenium ion (NO2+), which is formed by the reaction of nitric acid (HNO3) and sulfuric acid (H2SO4).
The chemical reaction to form the electrophile is as follows:
HNO3 + H2SO4 → NO2+ + HSO4- + H2O
Step-by-step explanation:
1. Nitric acid (HNO3) reacts with sulfuric acid (H2SO4).
2. The reaction leads to the formation of the nitronium ion (NO2+), which is the electrophile needed for the nitration of methyl benzoate.
3. The byproducts of this reaction are the hydrogen sulfate ion (HSO4-) and water (H2O).
Conclusion:
The electrophile for the nitration of methyl benzoate, the nitrenium ion (NO2+), is formed through the reaction of nitric acid (HNO3) and sulfuric acid (H2SO4), producing the byproducts hydrogen sulfate ion (HSO4-) and water (H2O).
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Related Questions
What amino acid is associated with the trna that will bind to the mrna start codon aug?.
Answers
Enzymes known as transfer RNA (tRNA) synthetases are responsible for joining a particular amino acid to its associated tRNA in order to produce proteins at the ribosome.
What is amino acid?Methionine is carried by the initiator tRNA molecule, which binds to the AUG start codon of the mRNA transcript at the ribosome's P site. Methionine will then be added as the first amino acid to the expanding polypeptide chain.Start codon is bound by initiator tRNA. The small ribosomal subunit, mRNA, initiator tRNA, and large ribosomal subunit come together to form the initiation complex. The P site of the completed ribosome is where the initiator tRNA is located.Because the anticodon of the initiator methionine transfer RNA recognizes the AUG translation initiation codon of mRNAs, it is thought that the amino acid methionine initiates protein synthesis.To learn more about amino acid refer to:
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If CO2 is being produced in the solution at a faster rate than H2CO3, then the rate of the ____________ reaction is faster than the rate of the __________ reaction.
Answers
If CO2 is being produced in the solution at a faster rate than H2CO3, then the rate of the decomposition reaction is faster than the rate of the formation reaction. This means that more CO2 is being produced from the breakdown of H2CO3 than H2CO3 is being formed from the combination of CO2 and water.
This could be due to various factors such as changes in temperature or pressure, addition of catalysts or reactants, or changes in the concentration of reactants. Understanding the rates of these reactions is important in fields such as chemistry, biology, and environmental science as they play a crucial role in many natural and industrial processes.
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what does le chateliter's principle state
Answers
How does an emerging idea differ from scientific consensus? Which best describes emerging scientific ideas?
Answers
Emerging scientific ideas are new theories or ideas that are gaining attention in the scientific community, but have not yet been fully accepted or confirmed.
Emerging ideas refer to the new and innovative ideas or theories that have yet to gain full scientific acceptance. While a scientific consensus is a view or theory that has been universally accepted and confirmed by multiple experiments or research, an emerging scientific idea is a new and unproven theory or idea that is gaining attention in the scientific community. These emerging ideas may also be referred to as scientific hypotheses. In contrast to scientific consensus, emerging scientific ideas have not yet been subjected to rigorous testing and confirmation.
They are generally proposed to explain new observations or experimental results, which have not yet been fully understood or explained by established scientific theories. Emerging scientific ideas can have the potential to challenge the current scientific consensus. If an emerging scientific idea is found to be valid, it can ultimately lead to the establishment of a new scientific consensus. For example, the emerging scientific idea of the Higgs boson particle led to the discovery of a new field in particle physics, which is now an established scientific consensus.
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Required information The Foundational 15 (Algo) [LO8-2, LO8-3, LO8-4, LO8-5, LO8-7, LO8-9, LO8-10] (The following information applies to the questions displeyed below] Morganton Company makes one product and it provided the following information to help prepare the master budget:
a. The budgeted selling price per unit is $65. Budgeted unit sales for June, July, August, and September are 8,200, 12,000,14,000, and 15,000 units, respectively. All sales are on credit.
b. Forty percent of credit sales are collected in the month of the sale and 60% in the following month.
c. The ending finished goods inventory equals 20%, of the following month's unit sales.
d. The ending raw materlals inventory equals 10% of the following month's raw materials production needs. Each unit of finished goods requires 5 pounds of raw materiais. The raw materials cost $2.00 per pound.
e. Twenty percent of raw materials purchases are pald for in the month of purchase and 80% in the following month.
f. The direct labor woge rate is $13 per hour. Each unit of finished goods requires two direct labor-hours.
g. The variable selling and administrative expense per unit soid is $1.30. The fliced selling and administrative expense per month is $62.000. pundational 8-5 (Algo)
5. If 71.000 pounds of raw materials are needed to meet production in August, how many pounds of raw materials should be irchased in July?
6. If 7.000 pounds of raw materlats are needed to meet production in August, what is the estimated cost of raw materials purchases for July?
7. In July whot are the total estimated cach disbursements for raw materials purchases? Assume the cost of raw material purchases in June is $93.040, and 371.000 pounds of raw materials are needed to meet production in August.
8. If 7.000 pounds of raw materials are needed to meet production in August, what is the estimated accounts payable balance at the end of July?
9. If 7.000 pounds of raw materials are needed to meet production in August what is the estimated raw materiais inventory balance at the end of July?
10. What is the total estimated direct labor cost for July?
Answers
5. To meet production in August, 71,000 pounds of raw materials are needed.
Since each unit of finished goods requires 5 pounds of raw materials, we can calculate the number of units needed in August as 71,000 pounds / 5 pounds per unit = 14,200 units.
The ending To determine the answers to the questions, we need to calculate the required information based on the provided data. inventory in July is 10% of the following month's raw materials production needs, which is 10% of 14,200 units = 1,420 units. Since each unit requires 5 pounds of raw materials, the total pounds of raw materials to be purchased in July is 1,420 units * 5 pounds per unit = 7,100 pounds. 6. To calculate the estimated cost of raw materials purchases for July, we need to determine the cost per pound of raw materials. Given that the raw materials cost $2.00 per pound, the estimated cost of raw materials purchases for July is 7,100 pounds * $2.00 per pound = $14,200. 7. The total estimated cash disbursements for raw materials purchases in July can be calculated by considering the payment terms. Twenty percent of raw materials purchases are paid for in the month of purchase, and 80% are paid in the following month. Given that the cost of raw material purchases in June is $93,040, the payment made in July is 20% * $93,040 = $18,608. The payment made in August would be 80% * $93,040 = $74,432. Therefore, the total estimated cash disbursements for raw materials purchases in July would be $18,608. 8. To calculate the estimated accounts payable balance at the end of July, we need to consider the payment terms. Since 80% of raw materials purchases are paid in the following month, 80% * $14,200 = $11,360 will be paid in August. Therefore, the estimated accounts payable balance at the end of July would be $14,200 - $11,360 = $2,840. 9. The estimated raw materials inventory balance at the end of July can be calculated by considering the ending raw materials inventory in July. Given that the ending raw materials inventory equals 10% of the following month's raw materials production needs, which is 10% of 14,200 units = 1,420 units. Since each unit requires 5 pounds of raw materials, the estimated raw materials inventory balance at the end of July would be 1,420 units * 5 pounds per unit = 7,100 pounds. 10. To calculate the total estimated direct labor cost for July, we need to consider the number of units produced and the direct labor wage rate. The budgeted unit sales for July are 12,000 units. Each unit of finished goods requires 2 direct labor-hours, so the total direct labor-hours for July would be 12,000 units * 2 direct labor-hours per unit = 24,000 direct labor-hours. Given that the direct labor wage rate is $13 per hour, the total estimated direct labor cost for July would be 24,000 direct labor-hours * $13 per hour = $312,000.
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5) 14,200 units of finished goods will be produced in August.
6) The estimated cost of raw materials purchases for July is $2,800.
7) The total estimated cash disbursements for raw materials purchases in July is $18,608 + $74,432 = $93,040.
8) The estimated accounts payable balance at the end of July is $59,546.40.
9) Raw materials inventory balance is 700 pounds.
10) Total estimated direct labor cost for July is $312,000.
Let's solve in detail:
5. To meet production in August, 71,000 pounds of raw materials are needed. Since each unit of finished goods requires 5 pounds of raw materials, the total number of units to be produced is 71,000 pounds / 5 pounds per unit = 14,200 units. Therefore, 14,200 units of finished goods will be produced in August.
6. If 7,000 pounds of raw materials are needed to meet production in August, and each unit of finished goods requires 5 pounds of raw materials, the total number of units to be produced is 7,000 pounds / 5 pounds per unit = 1,400 units.
The estimated cost of raw materials purchases for July is 1,400 units * $2.00 per pound = $2,800.
7. To calculate the total estimated cash disbursements for raw materials purchases in July, we need to consider the payment terms.
In July, 20% of raw materials purchases are paid for in the month of purchase, and 80% is paid in the following month.
The raw materials purchased in June amount to $93,040. Assuming 20% is paid in June, the cash disbursement for June is $93,040 * 20% = $18,608.
For the remaining 80% of the June purchases, which will be paid in July, we need to calculate the amount. This is given by 80% of the June purchases - 20% of the July purchases.
Amount to be paid in July = ($93,040 * 80%) - (Total purchases for July * 20%)
Solving for the Total purchases for July:
($93,040 * 80%) - (Total purchases for July * 20%) = Total purchases for July * 80%
Rearranging the equation:
($93,040 * 80%) = (Total purchases for July * 80% + Total purchases for July * 20%)
($93,040 * 80%) = Total purchases for July * 100%
Total purchases for July = ($93,040 * 80%) / 100%
Substituting the value of June purchases, we get:
Total purchases for July = ($93,040 * 80%) / 100% = $74,432
Therefore, the total estimated cash disbursements for raw materials purchases in July is $18,608 + $74,432 = $93,040.
8. If 7,000 pounds of raw materials are needed to meet production in August, and 80% of raw materials purchases are paid in the following month, the estimated accounts payable balance at the end of July would be 80% of the purchases for July.
Accounts payable balance = Total purchases for July * 80% = $74,432 * 80% = $59,546.40.
9. If 7,000 pounds of raw materials are needed to meet production in August, and the ending raw materials inventory equals 10% of the following month's raw materials production needs, the estimated raw materials inventory balance at the end of July would be 10% of the raw materials needed for August.
Raw materials inventory balance = 10% of the raw materials needed for August = 10% of 7,000 pounds = 700 pounds.
10. The total estimated direct labor cost for July can be calculated by multiplying the direct labor wage rate per hour by the total direct labor hours required for production in July.
Total direct labor hours for July = Number of units to be produced in July * Direct labor hours per unit = 12,000 units * 2 hours per unit = 24,000 hours.
Total estimated direct labor cost for July = Total direct labor hours for July * Direct labor wage rate = 24,000 hours * $13 per hour = $312,000.
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Name the following hydrocarbon compounds.
Answers
The naming of compound can be obtained by following the IUPAC principle. This is shown below:
For the 1st diagram:
Locate the longest continuous carbon chain. In this case it is carbon 5. Hence, the parent name is pentaneIdentify the substituent groups attached. In this case the substituent groups attached is two methyl, CH₃ Give the substituents the best possible low count. In this case, the two CH₃ is located at carbon 3Combine the above to obtain the IUPAC name for the compound.Thus, the IUPAC name for the compound is: 3,3-dimethylpentane
For the 2nd diagram:
Locate the longest continuous carbon chain. In this case it is carbon 5. Hence, the parent name is pentene since it contains a double bondIdentify the substituent groups attached. In this case there are no substituent groups attached.Thus, the IUPAC name for the compound is: pentene
For the 3rd diagram:
Locate the longest continuous carbon chain. In this case it is carbon 6. Hence, the parent name is hexaneIdentify the substituent groups attached. In this case the substituent groups attached is three methyl, CH₃ Give the substituents the best possible low count. In this case, two CH₃ are located at carbon 2 while the 3rd is located at carbon 3Combine the above to obtain the IUPAC name for the compound.Thus, the IUPAC name for the compound is: 2,2,3-trimethylhexane
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Be sure to answer all parts. Calculate δg o and kp for the following equilibrium reaction at 25. 00°c: 2h2o(g) ⇌ 2h2(g) o2(g)
Answers
We need the concentrations of hydrogen gas, water vapour, and oxygen gas to proceed further. If these concentrations are provided, we can substitute them into the equations and solve for δG° and Kp.
To calculate δG°, we need to use the equation δG° = -RT ln(Kp), where R is the gas constant and T is the temperature in Kelvin. To calculate Kp, we use the equation Kp = [H2]²/[H2O]²[O2]. By substituting the given values and solving the equations, we can find δG° and Kp.
To calculate δG° for the given equilibrium reaction at 25.00°C, we can use the equation δG° = -RT ln(Kp), where δG° is the standard Gibbs free energy change, R is the gas constant (8.314 J/(mol·K)), and T is the temperature in Kelvin. In this case, we need to convert the temperature from Celsius to Kelvin by adding 273.15 (25.00°C + 273.15 = 298.15 K).
To calculate Kp for the equilibrium reaction 2H2O(g) ⇌ 2H2(g) + O2(g), we can use the equation Kp = [H2]²/[H2O]²[O2]. Here, [H2] represents the concentration of hydrogen gas, [H2O] represents the concentration of water vapour, and [O2] represents the concentration of oxygen gas.
Now, let's substitute the given values into the equations and solve:
δG° = -RT ln(Kp)
= -(8.314 J/(mol·K)) * 298.15 K * ln(Kp)
Kp = [H2]²/[H2O]²[O2]
= ([H2]²) / ([H2O]²[O2])
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What is the IUPAC name for the following compound? O 1-sec-Butyl-4-isopropyl-2-methylcyclohexane O 1-Isopropyl-3-methyl-4-sec-butylcyclohexane O 4-lsopropyl-2-methyl-1-sec-butylcyclohexane O 1-sec-Butyl-3-isopropyl-2-methylcyclohexane
Answers
the IUPAC name for the following compound:
1.trans-1-isopropyl-2-methyl-cyclohexane
2.Methylcyclohexane
3. 1alpha-Isopropyl-4beta-tert-butylcyclohexane
4. 1alpha-Isopropyl-4beta-tert-butylcyclohexane
What is IUPAC nomenclature?The foundation for IUPAC nomenclature is the longest chain of carbons joined by a single bond, whether in a continuous chain or a ring. All deviations, whether multiple bonds or atoms other than carbon and hydrogen, are identified using prefixes or suffixes based on a specific set of priorities. Names are given to chemical elements based on their origins, physical or chemical properties, or fictional characters. The IUPAC then approves the recommended name for an element (International Union of Pure and Applied Chemistry).
Here,
the IUPAC designation for the subsequent compound:
1.trans-1-isopropyl-2-methyl-cyclohexane
2.Methylcyclohexane
3. 1,1-diisopropyl-4,4-dimethylcyclohexane
4. 1-amino-1-propyl-4-tert-butylcyclohexane
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Ions form the ________ number of an atom is changed?
Question options:
proton
neutron
atomic number
electron
(It was not Atomic number)
Answers
Answer:
Electron
Explanation:
what is the answer and why?
Answers
Answer:
D
Explanation:
There are 2 oxygens on the reactants side (OH)2 but 4 on the products side (2H2O). You cannot get 2 oxygens out of nowhere, so it is not balanced.
The volume of a gas is 0.9 L at 273 K and 1.2 atm. What pressure will the gas occupy if the temperature is raised to 325 K and the volume is raised to 1.8 L?
Answers
when the temperature is raised to 325 K and the volume is increased to 1.8 L, the gas will occupy a pressure of approximately 1.08 atm.
To solve this problem, we can use the combined gas law equation, which relates the initial and final conditions of a gas when the amount of gas remains constant.
The combined gas law equation is given as:
(P₁ * V₁) / T₁ = (P₂ * V₂) / T₂
where P₁, V₁, and T₁ represent the initial pressure, volume, and temperature, respectively, and P₂, V₂, and T₂ represent the final pressure, volume, and temperature, respectively.
Given
Initial pressure (P₁) = 1.2 atm
Initial volume (V₁) = 0.9 L
Initial temperature (T₁) = 273 K
Final volume (V₂) = 1.8 L
Final temperature (T₂) = 325 K
We need to find the final pressure (P₂).
Substituting the given values into the combined gas law equation, we have:
(1.2 atm * 0.9 L) / 273 K = (P₂ * 1.8 L) / 325 K
Now, we can solve for P₂:
P₂ = (1.2 atm * 0.9 L * 325 K) / (273 K * 1.8 L)
= 1.08 atm
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If a molecule has bond angles of 120° between the atoms, what type of hybrid orbitals are on the central atom in the molecule?
Answers
Answer:
Solution
verified
Verified by Toppr
Correct option is B)
In sp
3
d type of hybridisation, shape of molecule is trigonal bipyramidal and bond angle will be of 120
o
Given the standard enthalpy changes for the following two reactions
Given the standard enthalpy changes for the following two reactions:
(1) 2C(s) + 2H2(g)C2H4(g)...... ΔH° = 52.3 kJ
(2) 2C(s) + 3H2(g)C2H6(g)......ΔH° = -84.7 kJ
what is the standard enthalpy change for the reaction:
(3) C2H4(g) + H2(g)C2H6(g)......ΔH° = ?
Answers
The standard enthalpy change for reaction (3) is 117.1 kJ.
The standard enthalpy change for reaction (3) can be calculated by using the enthalpy changes of reactions (1) and (2) and applying Hess's Law.
To do this, we need to manipulate the given equations so that the desired reaction (3) can be obtained.
First, we reverse reaction (1) to get the formation of C2H4(g) from C2H6(g):
C2H4(g)C2H6(g) ΔH° = -52.3 kJ
Next, we multiply reaction (2) by 2 and reverse it to obtain 2 moles of C2H6(g) reacting to form 3 moles of H2(g):
2C2H6(g)2C(s) + 3H2(g) ΔH° = 169.4 kJ
Now, we add the two modified equations together:
C2H4(g)C2H6(g) ΔH° = -52.3 kJ
2C2H6(g)2C(s) + 3H2(g) ΔH° = 169.4 kJ
When adding these equations, the C2H6(g) on the left side cancels out with the C2H6(g) on the right side, leaving us with the desired reaction (3):
C2H4(g) + H2(g)C2H6(g) ΔH° = -52.3 kJ + 169.4 kJ = 117.1 kJ
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Convection is the transfer of Response area by the movement of heated matter.
a. True
b. False
Answers
Answer:
true
Explanation:
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if you gently shake a separatory funnel containing a carboxylic acid with ethyl acetate and aq nahco3, the organic acid will be found where? (multiple answers possible)
Answers
The organic compound, carboxylic acid will be found in ethyl acetate.
What are organic compounds?Organic compounds are those compounds that are obtained naturally from living matter.
Organic compounds are mostly composed of carbon, hydrogen, and oxygen.
Organic compounds are generally covalent compounds. Hence, they are usually non-polar compounds.
Based on the principle of like dissolves like, organic compounds are usually soluble in non-polar organic solvents and insoluble in polar inorganic solvents like water.
Carboxylic acid is an organic compound.
Ethyl acetate is an organic compound.
Aqueous NaHCO₃ is an inorganic compound.
Hence, carboxylic acid will dissolve in Ethyl acetate.
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What is the volume of 1.25 moles of a nickel sample if the density of a nickel is 8.90g/ml
Answers
Answer:
8.24 mL
Explanation:
Density can be defined as mass per unit volume, according to the relationship shown in the attached image. Moles (a unit of measurement for small entities) can also be related to mass. Let's look at two formulas which would be useful for answering this question.
\(\boxed{\text{Density}=\frac{\text{Mass}}{\text{Volume}} }\)
\(\boxed{\text{Mole}\times\text{Mr}=\text{Mass (in grams)}}\) , where Mr stands for relative molecular mass
From the periodic table the Mr of nickel is 58.7.
Multiply the number of moles by the Mr:
Mass of Ni
= 1.25(58.7)
= 73.375 g
Calculate the volume of Ni:
Volume
= mass ÷density
= 73.375 ÷8.90
= 8.24 ml (3 s.f.)
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Convert 0.249 mol C2H5OH into grams
Answers
Answer:
11.454 grams
Explanation:
Mass of C2H5OH is 46 grams.
Now, applying Unitary Method,
1 Mol -----> 46 grams
0.249 Mols -----> (46 x 0.249) grams = 11.454 grams.
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select the best explanation for why methanol, ch3oh, cannot be used as a solvent for the deprotonation of a terminal alkyne by sodium amide, nanh2.
Answers
Answer:
d. Methanol is more acidic than the alkyne and will be deprotonated instead.
Explanation:
because acidity is the ability to lose H+, leaving an anion behind; acidity depends on the stability of the anion.
7. What is the
concentration of a solution in
parts per million, if 0.45 gram of KNO,
is dissolved in 1000. grams of water?
(1) 450 ppm
(2) 4.5 × 10-5 ppm
(3) 4.5 x 10 ppm
(4) 225 ppm
7
Answers
The concentration of the solution in parts per million (ppm) is 450. The correct answer is (1) 450 ppm.
What is 1ppm?1 ppm (parts per million) is a unit of measurement used to express the concentration of a substance in a solution or mixture. It indicates the ratio of the number of units of a particular substance to the total number of units in the mixture, with each unit typically being a single molecule or ion.
To calculate the concentration of a solution in parts per million (ppm), we use the following formula:
Concentration (ppm) = (mass of solute / mass of solution) x 10^6
In this case, the mass of solute (KNO3) is 0.45 gram and the mass of solution is 1000 grams (1 liter of water). Putting up these values in the formula, we get:
Concentration (ppm) = (0.45 / 1000) x 10^6 Concentration (ppm) = 450
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Consider the unbalanced equation for the oxidation of butene. C4H8 + 6O2 Right arrow. CO2 + H2O For each molecule of C4H8 that reacts, how many molecules of carbon dioxide and water are produced? Group of answer choices 2 CO2 & 2 H2O 4 CO2 & 4 H2O 2 CO2 & 4 H2O 4 CO2 & 2 H2O
Answers
give a brief explanation of the term ion selective electrode (ise). describe the ise used in this experiment.
Answers
Ion selective electrodes are those electrodes that converts concentration of a specific ion that is present in a solution into electrical potential.
These ion selective electrodes are basically electrochemical sensors that work based on the principle of galvanic cell. The set up of these electrodes generally consists of a reference electrode, ion-selective membrane and a voltmeter.
The transport of ions from a region of higher concentration to a region of lower concentration through the selective membrane creates a potential difference. This potential difference can be measured with respect to a standard reference electrode having a constant electrode potential.
They are used for chloride, potassium, calcium, carbon dioxide/carbonate, oxygen, and a variety of other ions. These methods are particularly well suited for field analysis and also online measurements.
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How Many Grams Of Water Are Produced By Reacting 15.8 g H2, With Excess Oxygen? 2H2 + O2 --> 2H20
A. 141 G
B. 15.8 G
C. 17.8 G
D. 282 G
Answers
By using stoichiometry and considering the molar ratios from the balanced chemical equation, we find that reacting 15.8 g of H2 with excess oxygen will produce 141 g of water. 141 g.option A.
In the balanced chemical equation 2H2 + O2 → 2H2O, it is stated that two moles of hydrogen gas (H2) react with one mole of oxygen gas (O2) to produce two moles of water (H2O). Since the molar mass of water is approximately 18 g/mol, we can calculate the amount of water produced by converting the mass of hydrogen gas to moles and then using the mole ratio from the balanced equation.
To find the moles of hydrogen gas, we divide the given mass (15.8 g) by the molar mass of hydrogen (2 g/mol), which gives us 7.9 moles of H2. According to the balanced equation, each mole of H2 produces two moles of H2O. Therefore, 7.9 moles of H2 will produce 2 * 7.9 = 15.8 moles of H2O.
Finally, we convert the moles of water to grams by multiplying the moles (15.8) by the molar mass of water (18 g/mol), which gives us 284.4 g. However, we need to remember that the given reaction has excess oxygen, meaning all the hydrogen will react. Therefore, the limiting reactant is not hydrogen but oxygen.
Consequently, the amount of water produced will be based on the number of moles of oxygen. Since there is excess oxygen, we can assume that the moles of oxygen consumed are equal to the moles of hydrogen reacted. Therefore, the correct answer is 15.8 moles * 18 g/mol = 141 g.option A.
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What is always correct about the molecular ion, M+, in a mass spectrum of a compound? a) The M+ ion peak has the smallest m/z ratio in the mass spectrum. b) The m/z ratio of the M+ ion peak gives the relative molecular mass of the molecule. c) The M+ ion is the most stable fragment formed during electron bombardment. d) The M+ ion peak has the greatest intensity in the mass spectrum.
Answers
The m/z ratio of the M+ ion peak gives the relative molecular mass of the molecule.
correct option is B
The molecular ion, M+, in a mass spectrum is the precursor ion of the molecule before fragmentation.
The m/z ratio of the M+ ion peak in a mass spectrum gives the relative molecular mass of the molecule.
The m/z ratio is the ratio of the mass of the ion to its charge, and for the M+ ion, this value is equal to the molecular mass of the compound.
By measuring the m/z ratio of the M+ ion peak, it is possible to determine the relative molecular mass of the molecule, which is a crucial piece of information for identifying and characterizing a compound.
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Perform the followingmathematical operation, andreport the answer to the correctnumber of significant figures.0.008 : 51.3[? ]x100
Answers
Firsly, we can write the numbers in scientific form:
\(\begin{gathered} 0.008=8\times10^{-3} \\ 51.3=5.13\times10^1 \end{gathered}\)Notice that 0.008 has no tailing zeros, so the only significant figure is "8". 51,6 has 3 significant numbers.
In a division, the result will have the same number of significant figures as the one with less significant figure.
Since the one with less is 0.008, that has only one, the result also only has one significant figure:
\(\frac{0.008}{51.3}=\frac{8\times10^{-3}}{5.13\times10^1}=\frac{8}{5.13}\times10^{-4}=1.559\ldots\times10^{-4}\approx2\times10^{-4}\)A piece of glassware calibrated "TD" will contain and transfer the stated volume the stated volume stated exactly; exactly slightly more than; exactly slightly less than; exactly exactly: slightly less than slightly less than; slightly more than
Answers
The piece of glassware calibrated "TD" will contain and transfer the stated volume the stated volume slightly more than
Volumetric flasks, burets and pipets are the maximum correct with tolerances of much less than 0.2%. To obtain those accuracies the character the use of the tool desires to apply the right approach and the measurements want to made on the temperature for which the glassware changed into calibrated (commonly 20 stages C).To suggest this difference, volumetric glassware is commonly marked TD which means to supply or TC which means to comprise.
Certain styles of pipets, in particular micropipets, are designed to comprise a positive extent of liquid and those are marked piece of glassware calibrated "TD" will comprise and switch the said extent the said extent said precisely; precisely barely greater than; precisely barely much less than; precisely precisely: barely much less than barely much less than; barely greater than.
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How many moles are in 140 g NH,
A) 0.12 mol NH,
B) 0.33 mol NH,
C) 7.78 mol NH,
D) 6.25 mol NH,
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This is a question in Seneca, plz help asap bc I can't skip it!!
What do we call a pure sample that's run next to the tested substance to see if it's a component in the mixture?
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Answer:
Chromatography?
Explanation:
When a pure sample is run next to a tested substance to check if it is a component in the mixture it is called a ; Reference value
A reference value in a test is the average of repeated value gotten from laboratory measurements carried out in the lab using an accurate measurement tool. It is the bench mark value for which the value of any tested substance will be compared to.
Therefore to verify if a tested substance is a component in the mixture we have to run it next to a pure sample ( reference value ).
Hence we can conclude that When a pure sample is run next to a tested substance to check if it is a component in the mixture it is called a ; Reference value
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What volume (in mL) of a 0.500 M stock solution of NaNO3 would you add to a 1.000 L
volumetric flask in order to produce a 0.0755 M solution of NaNO3 by adding water to the
1.000 L mark?
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We need to add 151 mL of the 0.500 M stock solution of \(NaNO_{3}\) to the 1.000 L volumetric flask, and then add water to the mark to prepare a 0.0755 M solution of \(NaNO_{3}\).
To prepare a 0.0755 M solution of \(NaNO_{3}\), we need to calculate the volume of the 0.500 M stock solution that needs to be added to the 1.000 L volumetric flask. The solution can be calculated using the formula:
\(C_{1} V_{1} = C_{2} V_{2}\)
Where \(C_{1}\) and \(V_{1}\) are the concentration and volume of the stock solution, and \(C_{2}\) and \(V_{2}\) are the concentration and volume of the final solution.
Substituting the values in the formula, we get:
0.500 M x \(V_{1}\) = 0.0755 M x 1.000 L
\(V_{1}\) = (0.0755 M x 1.000 L) / 0.500 M
\(V_{1}\) = 0.151 L or 151 mL
Therefore, we need to add 151 mL of the 0.500 M stock solution of \(NaNO_{3}\) to the 1.000 L volumetric flask, and then add water to the mark to prepare a 0.0755 M solution of \(NaNO_{3}\).
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which substance is more soluble sugar or flour why does sugar is soluble??
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Answer:
sugar
Explanation:
because sugar dissolves
in water, while flower because it is insoluble
A chemical engineer is developing a process for producing a new chemical. One step in the process involves allowing a solution of potassium hydroxide to react with a solid.
Which action would most likely increase the reaction rate for this step?
using larger pieces of the solid
using a more concentrated potassium hydroxide solution
adding water to the system
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the 2nd one is correct
The option that would most likely increase the rate for a more contentrated potassium hydrogene
:) hope this helps
using a more concentrated potassium hydroxide solution
Concentration is one of the factors that affect the rate of reaction
The higher the concentration, the higher the reaction rate