Answers
A typical aspirin tablet contains 321 mg of the active ingredient acetylsalicylic acid and 321 mg makes 0.321 g.
Define Aspirin.The nonsteroidal anti-inflammatory medicine (NSAID) aspirin, often referred to as acetylsalicylic acid (ASA), is used to treat a variety of inflammatory disorders by lowering pain, fever, and/or inflammation. These conditions include Kawasaki disease, pericarditis, and rheumatic fever.
Long-term usage of aspirin is also used to help those at high risk avoid further heart attacks, ischemic strokes, and blood clots. Effects of pain or fever often start within 30 minutes. Aspirin functions similarly to other NSAIDs but also inhibits platelet function.
What risks does aspirin pose?Your doctor should be consulted when deciding whether or not to take aspirin because it depends on your cardiovascular risk, according to Wong. While aspirin is often taken safely by many people, it can also result in life-threatening stomach, intestinal, and brain bleeding.
convert mg to gram1 mg = 1/1000 g
so,
321 mg = 321/ 1000g
= 0.321g
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Related Questions
What is the coefficient for sodium chloride when this equation is balanced?
Answers
Answer:
To resolve this, we need to place the coefficient “2” in front of the sodium in the reactant, to give the equation shown below. 2 Na (s) + Cl 2 (g) → 2 NaCl (s) In this equation, there are two sodiums in the reactants, two sodiums in the products, two chlorines in the reactants and two chlorines in the products; the equation is now balanced.
Explanation:
What is the pH of a solution with [ht] = 2.3 * 10-3?
A. 3.00
B. -2.64
O C. -0.36
O D. 2.64
Answers
Answer:
The pH of a solution with [H+] = 2.3 x 10^-3 is 2.64.
Explanation:
Part 1(Picture 1):
Peptides isolated from rapeseed that may lower blood pressure have the following sequence of amino acids.
Part A
At physiological pH the N-terminus of an amino acid exists as the ammonium ion, and the C-terminus exists as the carboxylation ion.
Draw the structure of Arg-Ile-Tyr.
Draw the molecule on the canvas by choosing buttons from the Tools (for bonds and charges), Atoms, and Templates toolbars, including charges where needed.
Part 2(Picture 2):
Part A
What are the amino acids in the peptide?
Spell out the full names of the compounds. Enter your answers separated by a comma.
Part B
How would you name the dipeptide in the peptide?
Spell out the full name of the compound.
Answers
The structure of Arg-Ile-Tyr is given below:
What are Peptides?Peptides make up short chains of amino acids, which act as the fundamental units for building proteins. Within these chains, peptides usually consist of no more than 50 amino acids in contrast to proteins that are made up of significantly longer structures.
Found throughout various sources such as plants, animals, and bacteria, peptides play crucial roles in multiple biological processes including signaling, enzyme activity, and immune response.
Additionally, artificially synthesized peptides serve several purposes within the medicine, cosmetics, and food industries. Scientists are also exploring certain peptide's potential therapeutic advantages mainly pertaining to anti-inflammatory, antimicrobial, and anticancer activities.
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Suppose a current of 0.860A flows through a copper wire for 5.0 minutes. Calculate how many moles of electrons travel through the wire. Be sure your answer has the correct unit symbol and round your answer to 2 significant digits.
Answers
Answer:
2.7×10⁻³ mole
Explanation:
Applying
Q = it.............. Equation 1
Where Q = amount of charge, i = current, t = time
From the question,
Given: i = 0.860 A, t = 5 minutes = (5×60) seconds = 300 seconds
Subsitute these values into equation 1
Q = (0.860×300)
Q = 258 C
If one mole of electron has a charge of 96500 C
Then, x mole of electron will have a charge of 258 C
1 mole ⇒ 96500 C
X moles ⇒ 258 C
Solve for X
X = (258×1)/96500
X = 2.7×10⁻³ mole
8. A train travels at a at a speed of 30 miles per hour if 1 mile = 1.6 kilometers, how fast is the train traveling in kilometers per minute?
A. 0.8 km/min
B. 1.0 km/min
C. 0,4 km/min
D. 0,6 km/min
Answers
Answer:
Explanation:
A: 0.8 KM/Min
1.6 x 30 = 48
48/60 = 0.8
Find the mass of Carbon in 12.34g of C11H22O11
Answers
Answer:
4.0389 g
Explanation:
First step is to find how many moles of C11H22O11 12.34 grams is.
12.34 g / 330.11 g/mol = 0.03738 mol
Second, multiply the number of moles by the molar mass of C11
0.03738 mol × (11 × 12.011 g/mol) = 4.0389 g of carbon
Oxygen gas is collected at a pressure of 102 kPa in a container which has a volume
of 8.0 L. What temperature must be maintained on 0.487 moles of this gas in order
to maintain this pressure? 101.3 kPa is 1 atm. Express the temperature in degrees
C. Answer to 1 decimal.
Answers
Answer:
T =201.4k
Explanation:
pressure = 102000pa= 1.007atm
v = 8L
n = 0.487mole
R = 0.08206Latm.mol-¹k-¹
T = ?
using ideal gas equationpv=nRT1.007 x 8=0.487 x 0.08206 x T 8.056 = 0.040 x TT = 8.056/0.040T = 201.4K
4. What is the necessary volume of H₂ in order to obtain 5.0 g of propane (C3H8)? Assume that dH2=0,09g/l
Answers
The necessary volume of H₂ gas to obtain 5.0 g of propane (C₃H₈) is approximately 12.60 liters.
To determine the necessary volume of H₂ gas to obtain 5.0 g of propane (C₃H₈), we need to use the molar ratio between H₂ and C₃H₈, as well as the density of H₂ gas.
First, let's calculate the molar mass of propane (C₃H₈):
C: 12.01 g/mol
H: 1.01 g/mol
Molar mass of C₃H₈ = (3 * C) + (8 * H) = (3 * 12.01) + (8 * 1.01) = 44.11 g/mol
Next, we can determine the number of moles of propane (C₃H₈) using its mass:
Number of moles = Mass / Molar mass
Number of moles of C₃H₈ = 5.0 g / 44.11 g/mol ≈ 0.1134 mol
Now, we can establish the molar ratio between H₂ and C₃H₈ from the balanced chemical equation:
C₃H₈ + 5H₂ → 3CH₄
According to the balanced equation, 5 moles of H₂ are required to produce 1 mole of C₃H₈.
Therefore, the number of moles of H₂ required can be calculated as:
Number of moles of H₂ = 5 * Number of moles of C₃H₈ = 5 * 0.1134 mol = 0.567 mol
Finally, we can determine the necessary volume of H₂ gas using the ideal gas law equation:
Volume = (Number of moles * Gas constant * Temperature) / Pressure
Given that the density of H₂ is 0.09 g/L, we can convert it to moles per liter:
Density = Mass / Volume
0.09 g/L = 2 g/mol / Volume (since the molar mass of H₂ is 2 g/mol)
Solving for Volume:
Volume = 2 g/mol / 0.09 g/L ≈ 22.22 L/mol
Now, we can calculate the necessary volume of H₂ gas:
Volume of H₂ = Number of moles of H₂ * Volume per mole
Volume of H₂ = 0.567 mol * 22.22 L/mol ≈ 12.60 L
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Complete and balance the given precipitation reactions, including the physical states of the products as predicted by the solubility rules.
Ba(NO3)2 (aq)+ CuSO4(aq)-------->
K3 PO4 (aq)+ MgCl2 (aq)----------->
Answers
BaSO4 (s) + Cu(NO3)2 (aq) and KCl (s) + Mg3(PO4)2 (s) is the product of given precipitation reactions.
What is precipitation reactions ?Precipitation is the process of changing a dissolved substance from a super-saturated solution to an insoluble solid in an aqueous solution. Precipitate refers to the produced solid.The Ba2+ ions from the barium nitrate solution would react with the SO42- ions from the copper sulfate solution to form BaSO4, a white solid precipitate. The Cu2+ ions from the copper sulfate solution would react with the NO3- ions from the barium nitrate solution to form Cu(NO3)2, a blue solutionBa(NO3)2 (aq) + CuSO4 (aq) → BaSO4 (s) + Cu(NO3)2 (aq)
The K+ ions from the potassium phosphate solution would react with the Cl- ions from the magnesium chloride solution to form KCl, a white solid precipitate. At the same time, the Mg2+ ions from the magnesium chloride solution would react with the PO43- ions from the potassium phosphate solution to form Mg3(PO4)2K3 PO4 (aq) + MgCl2 (aq) → KCl (s) + Mg3(PO4)2 (s)
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Determine the total pressure of a gas mixture that contains O
Answers
To determine the total pressure of a gas mixture that contains oxygen (O2), you need to know the partial pressure of the oxygen gas and the partial pressures of the other gases in the mixture. The total pressure of a gas mixture is equal to the sum of the partial pressures of all the gases in the mixture. This is known as Dalton’s Law of Partial Pressures. Can you provide more information about the gas mixture, such as the partial pressures or mole fractions of the gases in the mixture?
MARK ME BRAINLEISTWhich two statements describe a way that an other-feeder gets food?
A. Sphagnum moss takes in energy from sunlight.
B. Paramecia sweep food into mouthlike openings.
C. A bear eats the fish that it catches.
D. A. pine tree carriers out photosynthesis.
Answers
Paramecia sweep food into mouthlike openings and a pine tree carriers out photosynthesis. These describe a way that an other-feeder gets food. The correct option is option B,D.
Filter feeders are a subclass of animals that eat by sifting food particles and suspended materials from water, often by running the water through a specially designed filtering apparatus. Baleen whales, clams, krill, sponges, various fish (including some sharks), and krill are just a few species that adopt this technique of eating. Paramecia sweep food into mouthlike openings and a pine tree carriers out photosynthesis. These describe a way that an other-feeder gets food.
Therefore, the correct option is option B,D.
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WILL GIVE BRAINLIEST !!!
Answers
Answer:
C i think
Explanation:
Classify these half-reactions by typing in “O” for “oxidation half-reaction,” “R” for “reduction half- reaction,” and “N” for “neither.” Upper H upper C l right arrow upper m g upper C l subscript 2. Upper m g right arrow upper M g upper C l subscript 2 plus 2 e superscript minus. 2 upper H upper C l plus 2 e superscript minus right arrow upper H subscript 2.
Answers
The classification for the following half-reactions is:
"N": HCI → MgCl₂"O": Mg → MgCl₂ + 2 e⁻"R": 2 HCI + 2 e⁻ → H₂What is an oxidation-reduction reaction?An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing electrons.
What are the half-reactions?There are 2 kinds of half-reactions.
Oxidation: An species loses electrons and its oxidation number increases.Reduction: An species gains electrons and its oxidation number decreases.Let's classify the following half-reactions.
HCI → MgCl₂Electrons are not exchanged and Cl, the element present on both sides, has the same oxidation number, -1. This is neither oxidation nor reduction.
Mg → MgCl₂ + 2 e⁻Mg loses 2 electrons and its oxidation number increases from 0 to +2. This is an oxidation half-reaction.
2 HCI + 2 e⁻ → H₂H gains 2 electrons and its oxidation number decreases from +1 to 0. This is a reduction half-reaction.
The classification for the following half-reactions is:
"N": HCI → MgCl₂"O": Mg → MgCl₂ + 2 e⁻"R": 2 HCI + 2 e⁻ → H₂The question is incomplete. I believe the complete question is as follows.
Use this oxidation-reduction reaction to answer questions about half-reactions:
Mg + 2 HCl → MgCl₂ + H₂
Classify these half-reactions by typing in "O" for "oxidation half-reaction," "R" for "reduction half-reaction," and "N" for "neither."
HCI → MgCl₂
Mg → MgCl₂ + 2 e⁻
2 HCI + 2 e⁻ → H₂
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Answer:
For those who need it, the answers are N, O, R
Explanation:
You are making a fluorescence measurement at a concentration of 500 pM and get a signal to noise of 5. If you need a detection limit of 75 pM, by how much do you need to increase the source power? Assume all you noise is from the instrument so you can use the 3 x standard deviation definition.
Answers
By -320 pM, we need to increase the source power. A fluorescent material begins to produce visible light when energy is absorbed as a result of the incidence of X-rays, light waves, and electrons.
What is fluorescence?When a substance generates electromagnetic waves inside the longer wavelength range and makes them visible to the human eye, it is a fascinating occurrence. Let's first define fluorescence in order to comprehend this. This allows the substance to gently transition from the partly excited state to the ground state. Fluorescence is the term for this phenomena.
Detection limit = 3 × noise / signal to noise ratio
Detection limit = 3× 75 pM / 5 = 15 pM
Source power = (noise / desired detection limit)² × current source power
Source power = (15 pM / 75 pM)² ×500 pM
= 0.36 ×500 pM
= 180 pM
Source power= 180 pM - 500 pM =
=-320 pM
Therefore, -320 pM, we need to increase the source power.
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The magnetic field makes life possible by protecting us from ___________. A) aliens B) sunlight C) the moon D) deadly ratio activity
Answers
Answer:
the answer is B) sunlight
A 10.0 L container is filled with 0.40 mol H₂(g) 0.80 mol O2(g), and 0.80 mol SO2(g). If the total pressure
inside the flask is 816 torr, what is the partial pressure of the H₂(g)?
Answers
As a result, the container's partial pressure of Hydogen is 163.2 torr.
How can you determine the container's overall pressure?The partial pressures of the individual gases make up the total pressure of the gas combination. The total number of moles in the gas mixture, or ntot, is equal to the sum of all ni. Ptot = Pi = P1 + P2 + P3...
Calculating the total moles of gas in the container is the first step.
n(total) = n(H2) + n(O2) + n(SO2)
= 0.40 mol + 0.80 mol + 0.80 mol
= 2.0 mol
Next, we need to use the mole fraction of H2 to calculate its partial pressure:
X(H2) = n(H2) / n(total)
= 0.40 mol / 2.0 mol
= 0.20
The mole fraction of H2 is 0.20, so we can use this to find the partial pressure of H2:
P(H2) = X(H2) x P(total)
= 0.20 x 816 torr
= 163.2 torr.
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what will be the outcome of the following two steps:a) take 50.0 ml of 1.0 m barium hydroxide and mix it with 50.0 ml 1.0 m hydrochloric acid and place them in beaker a.b) add 120.0 ml of 1.0 m zinc nitrate to beaker
Answers
The outcome of the two steps would be the formation of solid barium chloride and aqueous zinc hydroxide. a) The formation of 50.0 mL of 1.0 M barium chloride solution in the beaker. b) The formation of solid barium nitrate and aqueous zinc chloride.
When 50.0 mL of 1.0 M barium hydroxide solution is mixed with 50.0 mL of 1.0 M hydrochloric acid solution, a neutralization reaction occurs according to the following balanced chemical equation:
Ba(OH)2(aq) + 2HCl(aq) → BaCl2(aq) + 2H2O(l)
The result is the formation of 50.0 mL of 1.0 M barium chloride solution in the beaker.
When 120.0 mL of 1.0 M zinc nitrate solution is added to the beaker containing the barium chloride solution, a double displacement reaction occurs according to the following balanced chemical equation:
BaCl2(aq) + Zn(NO3)2(aq) → Ba(NO3)2(aq) + ZnCl2(aq)
The result is the formation of solid barium nitrate and aqueous zinc chloride.
However, it is important to note that the solubility of barium nitrate is much lower than that of barium chloride, so some of the barium nitrate may precipitate out of the solution as a solid.
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what are the cations found in the body
Answers
Answer:
Common cations include sodium, potassium, calcium, magnesium, copper, iron, and mercury
Explanation:
The major cation is sodium and the major anion is chloride.
Describe a situation in which you might need to convert the units of a measurement, and what information you would need to do so.
Answers
Converting the units of a measurement is an essential skill that everyone should have. In our daily life, there are numerous situations where we might need to convert the units of measurement. One of the common examples can be when baking. To get the desired outcome, it is crucial to have the right amount of ingredients.
However, the recipe might require a different unit of measurement than what we have in our kitchen. For instance, the recipe might ask for one cup of flour, but we only have grams of flour in our kitchen. Therefore, to follow the recipe and get the desired outcome, we need to convert the grams into cupsAnother example where we might need to convert the units of a measurement is when dealing with currencies. If we are traveling abroad, we might need to convert our home country's currency into the currency of the country we are visiting to know how much it is worth. For instance, if we are from the United States and we are traveling to Mexico, we might need to convert our U.S. dollars to Mexican pesos.To convert the units of a measurement, we need to know the conversion factors. Conversion factors are ratios of two equivalent measures. For instance, to convert grams to cups, we need to know the conversion factor between grams and cups. Similarly, to convert U.S. dollars to Mexican pesos, we need to know the conversion factor between the two currencies. The conversion factor is the information we need to convert the units of a measurement. It is the relationship between the two units of measurements that help us convert them.For such more question on measurement
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Starting with 0.3500 mol CO(g) and 0.05500 mol COCl2(g) in a 3.050 L flask at 668 K, how many moles of CI2(g) will be present at equilibrium?
CO(g) + Cl2(g)》COCl2(g)
Kc= 1.2 x 10^3 at 668 K
Answers
At equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.
1: Write the balanced chemical equation:
\(C_O\)(g) + \(Cl_2\)(g) ⟶ \(C_OCl_2\)(g)
2: Set up an ICE table to track the changes in moles of the substances involved in the reaction.
Initial:
\(C_O\)(g) = 0.3500 mol
\(Cl_2\)(g) = 0.05500 mol
\(C_OCl_2\)(g) = 0 mol
Change:
\(C_O\)(g) = -x
\(Cl_2\)(g) = -x
\(C_OCl_2\)(g) = +x
Equilibrium:
\(C_O\)(g) = 0.3500 - x mol
\(Cl_2\)(g) = 0.05500 - x mol
\(C_OCl_2\)(g) = x mol
3: Write the expression for the equilibrium constant (Kc) using the concentrations of the species involved:
Kc = [\(C_OCl_2\)(g)] / [\(C_O\)(g)] * [\(Cl_2\)(g)]
4: Substitute the given equilibrium constant (Kc) value into the expression:
1.2 x \(10^3\) = x / (0.3500 - x) * (0.05500 - x)
5: Solve the equation for x. Rearrange the equation to obtain a quadratic equation:
1.2 x \(10^3\) * (0.3500 - x) * (0.05500 - x) = x
6: Simplify and solve the quadratic equation. This can be done by multiplying out the terms, rearranging the equation to standard quadratic form, and then using the quadratic formula.
7: After solving the quadratic equation, you will find two possible values for x. However, since the number of moles cannot be negative, we discard the negative solution.
8: The positive value of x represents the number of moles of \(Cl_2\)(g) at equilibrium. Substitute the value of x into the expression for \(Cl_2\)(g):
\(Cl_2\)(g) = 0.05500 - x
9: Calculate the value of \(Cl_2\)(g) at equilibrium:
\(Cl_2\)(g) = 0.05500 - x
\(Cl_2\)(g) = 0.05500 - (positive value of x)
10: Calculate the final value of \(Cl_2\) (g) at equilibrium to get the answer.
Therefore, at equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.
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what does 2+2 eqaul im really dum
Answers
A liquid ester used to flavour food is believed to be impure. What would be the best way of testing its purity?
Answers
Answer:
Filter it
Explanation:
**NEED ANSWER ASAP, H.W QUESTION**
If the proton proton chain produces gamma ray photons, why are the majority of photons we observe from the sun at visible wavelengths?
Answers
In a proton-proton chain, four hydrogen nuclei (protons) are combined to form one helium nucleus; 0.7 percent of the original mass is lost mainly by conversion into heat energy, but some energy escapes in the form of neutrinos (ν).
Explanation:
1. How many atoms are in 2.15 moles of water?
*2. How many atoms of copper are in 12.0 grams?
*3. How many moles of NH3 contain 1.75 x 10^24 molecules of?
4. Determine the number of molecules in 16.75 g of H2O ?
5. Find the formula for a hydrate with 48.8% MgSO4 & 51.2% H2O
6. What is the % by mass of C in Pb(C2H3O2)2?
(Questions with stars just don't make sense to me.)
Answers
2. 12.00 g C-12 = 1 mol C-12 atoms = 6.022 × 1023 atoms • The number of particles in 1 mole is called Avogadro's Number (6.0221421 x 1023). Calculate the number of atoms in 2.45 mol of copper.
That’s all I know I think
1.29×10²⁴ atoms are in 2.15 moles of water. Atom is also the smallest piece of substance with chemical element-like characteristics.
What is atom?The smallest unit of matter that may be divided without producing electrically charged particles is the atom. It is also the smallest piece of substance with chemical element-like characteristics. As a result, the atom serves as the fundamental unit of chemistry.
Space makes up the majority of an atom. The rest is made up of a cloud of electrons that are negatively charged surrounding a nucleus that is positively charged made up of protons and neutrons. The behaviour of the electron in an atom can be compared to that of particles surrounding the nucleus.
number of atoms = number of moles ×6.022×10²³
= 2.15×6.022×10²³
= 1.29×10²⁴
Therefore, 1.29×10²⁴ atoms are in 2.15 moles of water.
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PLEASE HELP ME NO ONE WILL THIS IS IMPORTANT ALOT OF POINTS! A student's favorite drink is sweet tea. Every morning he makes it by adding exactly thirty grams of sugar and one tea bag to one liter of hot water. Some days his tea does not taste as sweet as other days. Those same days he notices that there is sugar sitting at the bottom of the cup that will not dissolve no matter how long he stirs. He decided to filter out the remaining sugar and keep track of the data in the graph below.
Explain why different amounts of sugar might dissolve at different times.
Consider:
1. which day the least sugar dissolved and which day the most sugar dissolved.
2. what could have caused less sugar to dissolve on some days
3. what the student could do to his drink to make more sugar dissolve.
Be sure to consider the completeness of your response, supporting details, and accurate use of terms. Your response should be 6-8 complete sentences.
Answers
The solubility of a substance, such as sugar, depends on several factors, including temperature, pressure, and the presence of other solutes. In this case, the student adds the same amount of sugar and tea bag to the same amount of hot water every day, but the temperature of the water could vary from day to day, affecting how much sugar dissolves.
According to the graph, the least amount of sugar dissolved on day 3, while the most sugar dissolved on day 5. The difference in temperature on these days could explain this variation. On day 3, the water may have been cooler, making it more difficult for the sugar to dissolve. On the other hand, on day 5, the water may have been hotter, which could have increased the solubility of the sugar.
To increase the amount of sugar that dissolves in the tea, the student could try using hotter water or stirring the sugar more vigorously to distribute it evenly throughout the water. Alternatively, the student could try adding the sugar gradually while stirring to give it more time to dissolve before adding more.
Answer:
I'm not 100% sure on this because mine hasn't been graded yet, but here are the answers I submitted.
Explanation:
Which day the least sugar dissolved and which day the most sugar dissolved:
Day 4 is when the least sugar dissolved, and Day 2 is when the most sugar dissolved.
What could have caused less sugar to dissolve on some days:
The temperature of the tea could have caused the sugar not to dissolve on some days.
What the student could do to his drink to make more sugar dissolve.
The student would need to add the sugar to the tea as soon as it's done boiling. The Sugar will dissolve faster in a warmer tea due to more energy of movement.
Be sure to stir the tea as you add the sugar. Stirring the sugar into the tea speeds up the rate of dissolving by helping distribute the sugar particles throughout the tea.
If the student were to use granulated sugar, those are smaller particles and have greater surface area. Greater surface area allows for more contact between the tea and the sugar.
According to the following reaction, how many grams of mercury will be formed upon the complete reaction of 32.7 grams of mercury (II) oxide?
2HgO (s) —> 2Hg (l) + O2 (g)
Answers
Taking into account the reaction stoichiometry, 30.28 grams of Hg are formed using 2.7 grams of mercury (II) oxide.
Reaction stoichiometryThe balanced reaction is:
2 HgO → 2 Hg + O₂
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
HgO: 2 molesHg: 2 molesO₂: 1 moleThe molar mass of the compounds is:
HgO: 216.59 g/moleHg: 200.59 g/moleO₂: 32 g/moleBy reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
HgO: 2 moles ×216.59 g/mole= 433.18 gramsHg: 2 moles ×200.59 g/mole= 401.18 gramsO₂: 1 mole ×32 g/mole= 32 gramsMass of H₂O formedThe following rule of three can be applied: if by reaction stoichiometry 433.18 grams of HgO form 401.18 grams of Hg, 32.7 grams of HgO form how much mass of Hg?
mass of Hg= (32.7 grams of HgO×401.18 grams of Hg)÷433.18 grams of HgO
mass of Hg= 30.28 grams
Finally, 30.28 grams of Hg are formed.
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Which of the following claims is a correct statement based on the data in the Reason for Earth’s Seasons activity?
Question 3 options:
The seasons are caused by the distance of the Earth from the Sun because the Earth is farther away from the Sun in the winter and closer in the summer.
The seasons are caused by the tilt of Earth’s axis and how much solar radiation each area of the Earth receives.
Answers
Answer: the second one " the seasons are caused by the tilt of earth's axis and how much solar radiation each area of earth receives. "
Explanation:
i took the test on k12.
The irreversible isomerization A
B was carried out in a batch reactor and the following concentration time data were obtained:
Time vs Concentration data in a Batch reactor
t 0 3 5 8 10 12 15 7.5
mol/h 4 2.89 2.25 1.45 1.0 0.65 0.25 0.07
Determine the reaction order,
, and the specific reaction a rate constant, k, using any method of your choice.
Answers
The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.
The term "kinetics" refers to the study of reaction rates, which are determined by measuring the concentration of reactants and products as a function of time.Kinetics experiments can be used to determine the reaction rate and order of reaction. A chemical reaction's rate is defined as the change in the concentration of a reactant or product per unit time. The order of a reaction refers to the number of molecules that must react to produce a product. The order of reaction can be determined by measuring the initial rate of the reaction as a function of concentration.Methods for determining the reaction rate order include the initial rate method, the half-life method, and the integrated rate method. The initial rate method determines the reaction order by measuring the initial rate of the reaction at different reactant concentrations. The half-life method determines the reaction order by measuring the time it takes for the reactant concentration to decrease by half.The integrated rate method determines the reaction order by measuring the concentration of the reactant or product at different times.The specific rate constant can be determined by using the Arrhenius equation, which relates the rate constant to the activation energy, temperature, and frequency factor. The frequency factor can be determined by measuring the rate constant at different temperatures.For such more question on polymerization
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The new volume assuming that the pressure and temperature remain constant is 0.46 L and the correct option is option 1.
The Ideal gas law is the equation of state of a hypothetical ideal gas. It is a good approximation to the behaviour of many gases under many conditions, although it has several limitations. The ideal gas equation can be written as-
PV = nRT
where,
P = Pressure
V = Volume
T = Temperature
n = number of moles
Given,
Initial volume = 1.5 L
Initial moles = 7.5 moles.
Moles remaining = 2.3 moles
\(\frac{n_{1} }{V_{1} } = \frac{n_{2} }{V_{2} }\)
\(\frac{7.5}{1.5 } = \frac{2.3}{V_{2} } }\)
V₂ = 0.46 L
Thus, the ideal selection is option 1.
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1. Covalent bonds are ones in which electrons are:
Select the correct answer below:
stolen from one another
removed from each atom to form two cations
shared by two atoms
none of the above
2. Which electron-pair geometry has two regions of high electron density?
tetrahedral
linear
trigonal planar
square
3. What is true about intermolecular forces?
They are attractions within a molecule.
They are attractions between molecules or particles.
They are stronger than bonds between atoms.
They only occur in the gas phase.
4.

5. Which bond is most polar?
NâO
CâO
SnâO
ClâO
6.
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Covalent bonds are ones in which electrons are shared by two atoms.
What is covalent bond?A covalent bond is a type of chemical bond that occurs when two atoms share electrons. It is a strong bond that involves the sharing of electrons between atoms in order to form a chemical bond. This type of bond is commonly found in molecules composed of non-metal elements such as oxygen, hydrogen, and nitrogen. Covalent bonds are essential for forming molecules and chemical compounds, and they are responsible for the unique properties of these compounds. Covalent bonds are generally very strong and highly stable, which makes them essential for many biological processes, such as DNA replication.
Tetrahedral electron-pair geometry has two regions of high electron density. Intermolecular forces are attractions between molecules or particles and are generally weaker than bonds between atoms. N–O bond is the most polar bond and the bond angle of a trigonal planar molecule is 120 degrees.
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