which value is closest to the internal c-c-c bond angle in cyclohexane
Answers
The internal c-c-c bond angle in cyclohexane is an important factor in understanding the structure and properties of this molecule. Cyclohexane is a cyclic hydrocarbon with the formula C6H12, which means it consists of six carbon atoms arranged in a ring with each carbon atom connected to two other carbon atoms.
The bond angles in cyclohexane are not all the same due to the ring strain, which arises from the tetrahedral geometry of carbon atoms.
The value of the internal c-c-c bond angle in cyclohexane is known to be around 109.5 degrees, which is close to the ideal tetrahedral bond angle of 109.47 degrees. However, in cyclohexane, due to the ring strain, the internal c-c-c bond angle deviates slightly from the ideal angle and is closer to 111.1 degrees.
In summary, the internal c-c-c bond angle in cyclohexane is closest to 111.1 degrees, which is a result of the ring strain in the molecule. Understanding the bond angles in cyclohexane is essential for studying its properties, such as its reactivity and stability, and for designing and synthesizing new molecules with similar structures.
The internal C-C-C bond angle in cyclohexane is closest to 109.5 degrees. Cyclohexane is a six-membered ring with carbon atoms connected by single bonds, forming a planar hexagonal structure. Each carbon forms three sigma bonds with adjacent carbons, leading to sp3 hybridization. The ideal bond angle for sp3 hybridized orbitals is 109.5 degrees, which is approximately the internal C-C-C bond angle in cyclohexane. This angle minimizes the strain in the ring and allows the molecule to maintain stability.
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Related Questions
calculate the number of atoms in 2.5 mol manganese.
Answers
Answer:
1.5 × 10²⁴ atoms Mn
General Formulas and Concepts:
Chemistry - Atomic Structure
Reading a Periodic TableUsing Dimensional AnalysisAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Explanation:
Step 1: Define
2.5 mol Mn
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
\(2.5 \ mol \ Mn(\frac{6.022 \cdot 10^{23} \ atoms \ Mn}{1 \ mol \ Mn} )\) = 1.5055 × 10²⁴ atoms Mn
Step 4: Check
We are given 2 sig figs. Follow sig fig rules and round.
1.5055 × 10²⁴ atoms Mn ≈ 1.5 × 10²⁴ atoms Mn
Some 6 M HCl is added to a solution that may contain the three ions. A white precipitate forms. Which elements are: (1) confirmed present; (2) confirmed absent; (3) undetermined silver and iron; none; copper silver, copper and iron; nonesilver, none, copper and ironsilver and copper: none; iron
Answers
Based on the information given, we know that a white precipitate forms when 6 M HCl is added to the solution. This tells us that one or more of the three ions present in the solution can form an insoluble chloride salt.
(1) To determine which elements are confirmed present, we need to consider which of the three ions can form an insoluble chloride salt. Silver (Ag+), copper (Cu2+), and iron (Fe3+) can all form insoluble chloride salts. Therefore, we cannot confirm which of these ions is present without further testing.
(2) We can confirm that none of the following elements are present: silver, copper, or iron. If any of these elements were present, we would see a precipitate form when HCl is added to the solution.
(3) We cannot determine whether silver and iron are present or absent. We know that copper is absent, but silver and iron can both form insoluble chloride salts. Therefore, we need further testing to confirm whether silver and iron are present or absent.
Based on your question, it seems that 6 M HCl is added to a solution potentially containing three ions, and a white precipitate forms. I will address the presence or absence of silver, copper, and iron ions:
1) Confirmed present: Silver (Ag+), as the white precipitate indicates the formation of silver chloride (AgCl).
2) Confirmed absent: None, as the formation of a white precipitate does not rule out the presence of other ions.
3) Undetermined: Copper (Cu²+) and Iron (Fe²+ or Fe³+). The formation of a white precipitate does not provide enough information to determine the presence or absence of these ions.
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Some 6 M HCl is added to a solution that may contain the three ions. A white precipitate forms, which elements are confirmed present, confirmed absent, and undetermined when 6 M HCl is added to a solution containing three possible ions and a white precipitate forms. Here are the terms included in your question: silver, iron, copper, none.
Your answer:
(1) Confirmed present: Silver (Ag)
(2) Confirmed absent: Iron (Fe) and Copper (Cu)
(3) Undetermined: None
When 6 M HCl is added to the solution, the formation of a white precipitate indicates the presence of silver ions (Ag+), as silver chloride (AgCl) is a white precipitate. This confirms the presence of silver. The absence of any other precipitates or color changes in the solution suggests that iron (Fe) and copper (Cu) are not present, making them confirmed absent. Since all three elements in the question have been addressed, there are no undetermined elements.
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What is CO2 used for in industry?
Answers
As an example of how CO2 is utilized in industry, it is employed as an inert gas in welders and flame extinguishers, as just a pressurizing gas for air cannons and oil recovery, as a supercritical solvent in coffee decaffeination and supercritical drying.
What is the purpose of CO2?Chemical intermediaries, such as methanol, syngas, & formic acid, can be produced from CO2 using a variety of catalysts. These molecules subsequently act as feedstocks in those other industrial processes.Additionally, CO2 can be converted by catalysts to polymers, which serve as building blocks for plastics, adhesives, & medications.
What is the industrial usage of carbon?The creation of ethanol, fertilizer, natural gas processing, hydrogen synthesis in refineries, and, most recently, coal-fired power generation are among the industrial processes where large-scale carbon capture has been shown and is currently in use.
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3. Consider an iron-carbon alloy containing 0.60 wt% carbon. What is the proeutectoid phase? Compute the mass fractions of the proeutectoid phase and the pearlite phase. (15) arven C-0.60 knite chuse
Answers
The mass fraction of the pro eutectoid phase is approximately 0, and of the pearlite phase is approximately 1.
In iron-carbon alloy with 0.60 wt% carbon, the pro eutectoid phase is cementite (Fe₃C). To calculate the mass fractions of the pro eutectoid phase and the pearlite phase, consider the eutectoid reaction.
Eutectoid reactions in iron-carbon alloys are usually found at a composition of approximately 0.76 wt% carbon. As the alloy in question contains 0.60 wt% carbon it is hypo-eutectoid (i.e., below the eutectoid composition).
The lever rule will be used to calculate this equation as follows:
f₁ = \(\frac{C_{0} - C_{e} }{C_{1} - C_{e} }\)
where the values represent here :
f₁ = mass fraction of the pro eutectoid phase (cementite),
Cₒ =carbon content in the alloy (0.60 wt%),
Cₑ =eutectoid composition (0.76 wt%),
C₁ = carbon content in the cementite phase (6.70 wt% carbon).
After substituting the given values into the equation:
f₁ = \(\frac{0.60 - 0.76}{6.70 - 0.76} \\\)
f₁ = \(\frac{0.16}{5.94}\)
f₁ ≈ -0.027
Here the negative value of f₁ shows that there is no pro eutectoid phase present in the alloy. Rather, the entire alloy consists of the pearlite phase.
Hence , the mass fraction of the pro-eutectoid phase is approximately 0, and the mass fraction of the pearlite phase is approximately 1.
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A large piece of iron was reacted with an acid. What would happen to the rate of the reaction had the large piece been finely divided into smaller pieces? (1 point)
It will decrease because the reactant particles are moved farther apart.
It will increase because the reactant particles are brought closer together.
It will decrease because larger particles provide more surface area to react.
It will increase because smaller particles provide more surface area to react.
Answers
Answer:
D: It will increase because smaller particles provide more surface area to react.
Explanation:
When the large iron is broken up into smaller pieces, there are more places for the iron to react (meaning there's more surface area). Think of it like taking the surface area of a big cube compared to the surface area of a bunch of small cubes. The sum of the surface areas of the small cubes will be greater than that of the large cube. As a result, more places for the iron to react will cause for a greater reaction.
Answer: D It will increase because smaller particles provide more surface area to react.
In a hospital, bags of saline solution are used to rehydrate patients. They are made by dissolving a specific amount of salt in water. What is the solvent in the saline solution?
A. Bag
B. Patient
C. Saline
D. Water
Answers
The solvent is the liquid that the solute (salt) is dissolved in.
Water is the solvent in the saline solution. Hence, option D is correct.
What is the solute?A solute is something being dissolved, a solvent is a thing dissolving the item, and the solution is the mixture of the two items.
In a hospital, bags of saline solution are used to rehydrate patients. They are made by dissolving a specific amount of salt in water. Water is the solvent in the saline solution.
Hence, option D is correct.
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why are collaboration important in science?
Answers
Answer:
For scientists working in classified areas, collaboration with university programs and researchers provides opportunities to expand their career opportunities and strengthen their science through the conduct of peer-reviewed, open literature research.
Explanation:
that's just how it works!
Answer:
Adding on to the previous answer, having collaboration allows you to broaden your scopes, and science is all about just collaborating and communicating with each other. We discuss with other fellow scientists about research to get different perspectives or to get advice. It's practically useful since you are all interdependently relying on each other while sharing what you know.
Dose anyone understand this I need help can anyone help me on this please !
Answers
If gas molecules in an enclosed chamber are allowed to enter a second chamber, the resulting redistribution of gas molecules represents an increase in?
Answers
If gas molecules in an enclosed chamber are allowed to enter a second chamber, the resulting redistribution of gas molecules represents an increase in entropy.
Entropy is defined as the measure of a system's thermal energy or te amount of energy which is unavailable to do work.
The entropy is known to increase because of the pressure or concentration is reduced. Entropy of gases are much larger than the condensed phases.
Entropy is the measure of the randomness or disorder of the system.
When the gas molecules were in an enclosed chamber, they were at a constant temperature and molecules did not slow down but when they were allowed to enter a second chamber, they had more place in container where they were in disorder, which resulted in redistribution of gas molecules, increasing the entropy of gas due to its expansion.
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Assume that 41. 1g of hydrogen peroxide decompose to produce oxygen gas at STP to the following balanced equation:
2H2O2 (l) ---------> 2H2O(l) + O2 (g)
How many Liters of oxygen gas are produced?
Answers
At STP, 1 mole of any gas occupies a volume of 22.4 liters. In order to calculate the amount of oxygen gas produced in the reaction, we must first calculate the number of moles of hydrogen peroxide present in the reaction.
Since 1 mole of hydrogen peroxide has a mass of 34.02 g, we can calculate the number of moles as follows:
41.1/34.02 = 1.20 molesSince the reaction produces 1 mole of oxygen for every 2 moles of hydrogen peroxide, the total number of moles of oxygen produced is 1.20/2 = 0.60 moles.
To calculate the volume of the oxygen gas produced, we multiply the number of moles of oxygen by 22.4 liters, which gives us 0.60 * 22.4 = 13.44 liters of oxygen gas produced.
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how can you avoid the formation of the side product in this experiment? group of answer choicesby drying the aqueous layer.by using pure sodium iodide.by using pure silver nitrate.by keeping the reaction at a low temperature and avoiding overheating the product during distillation.by venting the gases out of the separatory funnel.
Answers
This is because side reactions and unwanted byproducts are often favored at higher temperatures.
To avoid the formation of a side product in this experiment, the best approach would be to keep the reaction at a low temperature and avoid overheating the product during distillation. This is because side reactions and unwanted byproducts are often favored at higher temperatures. By maintaining a low temperature, the reaction can be controlled to favor the desired product and minimize the formation of side products.
Drying the aqueous layer, using pure sodium iodide, using pure silver nitrate, and venting the gases out of the separatory funnel are not specifically related to preventing the formation of side products in this context. They may be relevant for other aspects of the experiment, but they would not directly address the formation of side products.
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10. When a substance is analyzed using an electron microscope, it is found
to contain only one type of atom.
This substance is
A an element
B. a mixture
C. neither of the other three
D. a compound
Answers
which scale is most precise?
which scale is most accurate?
Answers
It’s most precise bc it goes to thousandths but it’s also closest to 1 making it most accurate.
Amelia makes a Venn diagram to compare the advantages and disadvantages of asexual reproduction and sexual reproduction. Which label belongs in the region marked X? Less competition for resources Faster No variation in DNA Less energy required
Answers
Answer:
A
Explanation:
Got it right on edge 2021
The label that belongs in the region marked X is less competition for resources. Thus, the correct option for this question is A.
What are the advantages of sexual reproduction?The advantages of sexual reproduction may be determined by the fact that it produces genetic variation in the offspring, the species can adapt to new environments due to variation, which gives them a survival advantage, and a disease is less likely to affect all the individuals in a population.
While the advantages of asexual reproduction are characterized as through the fact that the population can increase rapidly when the conditions are favorable. only one parent is needed. It is more time and energy efficient as you don't need a mate.
But label X discriminates the advantages of both forms of reproduction in a very efficient manner which definitely reduces the level of competition for resources among the population.
Therefore, the label that belongs in the region marked X is less competition for resources. Thus, the correct option for this question is A.
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Use the drop down menus to describe the changes of the subatomic particles
Answers
Answer:
Protons have a +1/positive charge.
Neutrons have a 0/neutral charge.
Electrons have a -1/negative charge.
Explanation:
In Chemistry, we know that Protons are located in the nucleus, determine the element, and have a positive charge. The opposite of a Protons is an Electron, which orbits the nucleus and has a negative charge. Neutrons are found in the nucleus with Protons but has no charge; it only affects the mass.
Protons have a +1/positive charge.
Neutrons have a 0/neutral charge.
Electrons have a -1/negative charge.
What is a proton?A proton is a subatomic particle found in the nucleus of every atom. The particle has a positive electrical charge, equal and opposite to that of the electron.
In Chemistry, we know that Protons are located in the nucleus, determine the element, and have a positive charge.
The opposite of a Proton is an Electron, which orbits the nucleus and has a negative charge.
Neutrons are found in the nucleus with Protons but have no charge; it only affects the mass.
Hence,
Protons have a +1/positive charge.
Neutrons have a 0/neutral charge.
Electrons have a -1/negative charge.
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compare the size of ions to the size of atoms from which they form
Answers
Cations are always smaller than the atoms from which they form. Anions are always larger than the atoms from which they form. Ions are usually bigger than the atoms from which they are formed.
When an atom receives or loses electrons, the atom's electron configuration changes, resulting in a net positive or negative charge.
This net charge expands the electron cloud surrounding the nucleus, making the ion bigger in size than the neutral atoms from which it arose. When a metal atom loses one or more electrons to create a cation, it shrinks in size because the positive charge of the nucleus pulls the remaining electrons more strongly.
When a nonmetal atom obtains one or more electrons to create an anion, it normally expands in size.Because of the increasing amount of electrons, the electron cloud surrounding the nucleus grows. It should be noted that this comparison is not absolute and is dependent on the individual factors involved. Some ions are smaller than their neutral atom counterparts, while others are similar in size.
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The complete question is:
Compare the size of ions to the size of atoms from which they form.
Which graph represents a titration between NaOH(aq) and HCl(aq)?
Answers
Strong acids and bases, HCl and NaOH, respectively, have titration curves that resemble one another (curve form) at various concentrations.
The condition of both the reactants and the products is water. The HCl + NaOH reaction's key variables, formulae, and titration curve. NaOH and HCl react in a 1:1 ratio (equal amounts).
Aqueous HCl acid solution and Aqueous NaOH solution are both present in each beaker. When no additional NaOH is added, the pH initially depends on the concentration of NaOH, and when HCl concentration rises, the pH value rises. As soon as HCl is present in the flask, the titration curve is complete.
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A __________ contains more than one type of substance as part of its composition.
Answers
A mixture contains more than one type of substance as part of its composition.
A heterogeneous mixture, on the other hand, has a non-uniform composition. Because they are not evenly distributed, the various substances in a heterogeneous mixture can be visually distinguished. Salads with easily distinguishable ingredients are examples of heterogeneous mixtures, as is a solution of sand and water in which the sand particles settle to the bottom.
A mixture is made up of various different types of substances. Both homogeneous mixtures, in which the ingredients are evenly distributed and cannot be easily distinguished, and heterogeneous mixtures, in which the ingredients are not evenly distributed but can be visually distinguished, can fall under this category.
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What is the purpose of the NADH made during glycolysis?
A. It makes sugars more likely to explode.
B. It carries electrons and hydrogens to the electron transport chain.
C. It transports pyruvate around the cell
D. All of these.
E. It breaks down ATP.
Answers
NADH carries electrons and hydrogens to the electron transport chain.
The main role of NADH and FADH₂ is to donate electrons and hydrogen to the electron transport chain. NADH stands for Nicotinamide Adenine Dinucleotide (NAD) + Hydrogen (H). It also plays an important role of generating energy in the body. During the electron transport chain both NADH and FADH₂ donate electrons by providing hydrogen molecules to the oxygen molecules to create water. Both Kreb's cycle and glycolysis produces NADH.
The NADH that are produced by the body are used for generating energy for the body. Supplements are also taken for NADH but they have some side effects like blood pressure and other effects.
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How can I explain that orange juice is a homogeneous mixture ?
Answers
Answer: It is usually separated from tea leaves by filtration. B Because the composition of the solution is uniform throughout, it is a homogeneous mixture. A Orange juice contains particles of solid (pulp) as well as liquid; it is not chemically pure.
What is the meaning of N, E, M, and S in periodic table Need ASAP!
Answers
Answer:
Molybdenum is M, Einsteinium is E, and N is Nitrogen. Lastly, S is sulfur.
Question
2 Points
Describe the path of a light ray that hits a mirror at its vertex.
A. It is reflected back through the focus.
B. It is absorbed by the mirror.
C. It is reflected out at exactly the same angle at which it came in,
according to the Law of Reflection.
D. It is reflected back parallel to the principal axis.
SUBMI
Hurry
Answers
Answer:D
Explanation:
Answer:
D
Explanation:
Help would be greatly appreciated, picture of the question is here
Answers
Based on the results obtained in the table, the solute is a solid because it has an increase in the amount dissolved as temperature increases.
The correct option is B.
What is the effect of an increase in temperature on the solubility of solutes?The average kinetic energy of the solute molecules increases along with the solution's temperature. As a result, the molecules have a lower ability to bind together and dissolve more easily. Therefore, when the temperature rises, solid states become more soluble.
However, for solutes that are gas, an increase in temperature decreases the solubility of the gas, and the gas comes out of the solution.
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Which missing item would complete this beta decay reaction?
Answers
Answer:
The answer is option A.Hope this helps you
Calcium is element 20 in the Periodic Table, has a mass of 40 amu and forms a 2+ ionic species. The calcium ion therefore has a. 18 protons, 18 neutrons and 22 electrons b. 22 protons, 18 neutrons and 18 electrons c. 20 protons, 20 neutrons and 18 electrons d. 18 protons, 20 neutrons and 20 electrons e. 20 protons, 18 neutrons and 20 electrons 1. In the following expression a∼1/b, what is the relationship between the components a and b ? a. Direct proportion b. None of the above c. Exact equation d. Inverse proportion e. Proportionality constant
Answers
The calcium ion has 18 protons, 20 neutrons, and 20 electrons.
The relationship between the components a and b is Inverse proportion.
The calcium ion (Ca2+) has a 2+ charge, indicating that it has lost 2 electrons from its neutral state. To determine the number of protons, neutrons, and electrons in the calcium ion, we need to consider its atomic number and mass.
The atomic number of calcium is 20, which indicates that it has 20 protons. Since the calcium ion has a 2+ charge, it means it has lost 2 electrons. Therefore, the number of electrons in the calcium ion is 20 - 2 = 18.
The mass number of calcium is 40 amu, which represents the total number of protons and neutrons. Since the calcium ion has 20 protons, the number of neutrons can be calculated as 40 - 20 = 20.
So, the correct option is: d. 18 protons, 20 neutrons, and 20 electrons
In the expression a∼1/b, the relationship between the components a and b is an inverse proportion. This means that as the value of a increases, the value of b decreases, and vice versa. The symbol ∼ represents the proportional relationship between a and 1/b, indicating that they are inversely related. Therefore, the correct answer is: Inverse proportion
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Where would one find an uncharged tRNA molecule in a ribosome?a) In the A, P, and E sitesb) In the A sitec) In the P and E sitesd) In the E site
Answers
The ribosome expels uncharged tRNA molecules from the E site. This assertion is a. True. The tRNA molecule with no amino acid attached will leave the ribosomal complex at the E site (exit site) of the ribosome.
All cells include ribosomes, which are large molecules responsible for the synthesis of biological proteins. To create polypeptide chains, ribosomes combine amino acids in the order dictated by the messenger RNA molecules' codons. The short and big ribosomal subunits are the two main parts of ribosomes.
Decoding the message and creating peptide bonds are the two main jobs of ribosomes. The ribosomal subunits are two big, unequal-sized ribonucleoprotein particles (RNPs) that carry out these two functions. Each subunit is made up of several ribosomal proteins and one or more ribosomal RNAs (rRNAs) (r-proteins).
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which of the following elements, when covalently bonded, commonly have fewer than an octet of electrons with a formal charge of zero? select all that apply. multiple select question. silicon beryllium chlorine phosphorus boron
Answers
Beryllium and boron are the elements that, when covalently bonded, commonly have fewer than an octet of electrons with a formal charge of zero. Beryllium typically forms bonds with only four electrons, while boron forms bonds with six electrons.
Beryllium (Be) and boron (B) are elements in the periodic table that are known to commonly exhibit an incomplete octet when they form covalent bonds, meaning they have fewer than eight electrons in their valence shells. Beryllium usually forms bonds with only four electrons because it has only two valence electrons in its outermost energy level. This allows it to form two covalent bonds, each sharing one electron from beryllium with another atom. Boron, on the other hand, has three valence electrons, and typically forms bonds with six electrons, resulting in a formal charge of zero. This means that boron forms three covalent bonds, with each bond sharing two electrons from boron with other atoms, leaving boron with a formal charge of zero. This unique behaviour of beryllium and boron in forming covalent bonds with less than a complete octet of electrons is due to their small size and high electronegativity, which results in them being more likely to accept electron pairs than share or donate them, resulting in incomplete octets.
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calculate the equilibrium concentrations of nh3 and h2s if a sample of solid nh4hs is placed in a closed vessel and decomposes until equilibrium is reached
Answers
If a sample of solid nh4hs is put in a closed vessel and allowed to break down until equilibrium is reached, the concentrations of nh3 and h2s are at their equilibrium values, which are 0.011 m.
1.2 x 104 = [NH3][H2S] where [NH3] = [H2S] = square root 1.2 x 10^-4 = 0.011 M
The concentrations of NH3, H2, and N2 are respectively 1.2102, 3.0102, and 1.5102M at equilibrium. In the flask, NH3 and H2S gases are produced as ammonium hydrogen sulphide breaks down. Total pressure in the flask increases to 0.84 atm when the decomposition reaction achieves equilibrium. At this temperature, the equilibrium constant for the breakdown of NH4HS is. Fear not! K=[Lmol]−2=L2mol−2. The equilibrium expression for the reaction N2 + 3H2 2NH3 can be expressed as K [NH3]2/[N2] [H2]3.
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What mass of copper (II) sulfide would be formed if 18.5 moles
of copper reacts?
_Cu + _S8 > _CuS
Answers
1768.7g of copper (II) sulfide would be formed if 18.5 moles of copper reacts.
What does the word "mole" mean?
A mole is 6.02214076 x 10^23 of any chemical quantity, including atoms, molecules, ions, and others. Due to the large number of atoms, molecules, or other components that make up any substance, the mole is a useful measure to use.
2 Cu + S₈ → 2 CuS
2 moles of Copper(II) sulfide is created when a reaction between two moles of copper and one mole of sulfur occurs.
Mass of Cu = no. of moles of Cu × Molar mass of Cu
= 18.5 mol × 63.55 g/mol
= 1174.18 g
2 moles of Cu gives 2 moles of CuS
18.5 moles of Cu will give 18.5 moles of CuS
Mass of CuS will be 18.5 ×95.61 i.e. 1768.7g
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student plans to react 2.1 mol of aluminum using this reaction
2AL (5) + 6H20(g) > 2AL(OH) 3 () + 3H2 (g)
The student multiples the 2.1 mol by the ratio 6:2. What did the student calculate?
Answers
Answer:
The student is calculating how many moles of water are required to fully react with 2.1 moles of aluminum.
Explanation:
2AL + 6H20 > 2AL(OH)3 + 3H2
The ratio 6:2 is the same as the molar ratio of H2O to Al: (6 moles H2O)/(2 moles Al). The student is likely calculating how many moles of water is required to fully react with 2.1 moles of Al.