What is the theoretical yield of vanadium that can be produced by the reaction of 40.0 g of V2O5 with 40.0 g of calcium based on the following chemical reaction? V2O5(s)+ 5Ca(l) $\rarr$ 2V(l)+ 5CaO(s)

A) 11.2 g B) 5.6 g C) 22.4 g D) 40.0 g E) 20.3 g A) 11.2 g B) 5.6 g C) 22.4 g D) 40.0 g E) 20.3 g E

How many grams of Cl2 can be prepared from the reaction of 16.0 g of MnO2 and 30.0 g of HCl according to the following chemical equation? MnO2 + 4HCl $\rarr$ MnCl2 + Cl2 + 2H2O

A) 0.82 g B) 5.8 g C) 13.0 g D) 14.6 g E) 58.4 g A) 0.82 g B) 5.8 g C) 13.0 g D) 14.6 g E) 58.4 g

Hydrogen chloride gas can be prepared by the following reaction: 2NaCl(s)+ H2SO4(aq)$\rarr$ 2HCl(g)+ Na2SO4(s) How many grams of HCl can be prepared from 2.00 mol H2SO4 and 150 g NaCl?

A) 7.30 g B) 93.5 g C) 146 g D) 150 g E) 196 g A) 7.30 g B) 93.5 g C) 146 g D) 150 g E) 196 g

The mass of four moles of molecular bromine (Br2)is

A) 80 g. B) 320 g. C) 640 g. D) 140 g. E) 24 * 1023 g. A) 80 g. B) 320 g. C) 640 g. D) 140 g. E) 24 * 1023 g.

Calculate the molecular mass of menthol, C10H20O.

A) 156 amu B) 140 amu C) 29 amu D) 146 amu E) 136 amu A) 156 amu B) 140 amu C) 29 amu D) 146 amu E) 136 amu

How many moles of HCl are represented by 1.0 * 1019 HCl molecules?

A) 1.7 * 10-5 mol B) 1.5 * 10-3 mol C) 1.0 * 1019 mol D) 36.5 mol E) 6.02 * 104 mol A) 1.7 * 10-5 mol B) 1.5 * 10-3 mol C) 1.0 * 1019 mol D) 36.5 mol E) 6.02 * 104 mol

What is the mass of 0.20 mole of C2H6O (ethanol)?

A) 230 g B) 46 g C) 23 g D) 4.6 g E) None of these. A) 230 g B) 46 g C) 23 g D) 4.6 g E) None of these.

Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid. MnO2(s)+ 4HCl(aq) $\rarr$MnCl2(aq)+ 2H2O(l)+ Cl2(g) According to the above reaction, which is the limiting reagent when 28 g of MnO2 are reacted with 42 g of HCl?

A) MnO2 B) HCl C) MnCl2 D) Cl2 E) No reagent is limiting. A) MnO2 B) HCl C) MnCl2 D) Cl2 E) No reagent is limiting.

What is the mass of 8.25 * 1019 UF6 molecules?

A) 352 g B) 0.0482 g C) 1.37 * 10-4 g D) 2.90 * 1022 g E) 8.25 * 1019 g A) 352 g B) 0.0482 g C) 1.37 * 10-4 g D) 2.90 * 1022 g E) 8.25 * 1019 g

Exam 3: Stoichiometry

What is the theoretical yield of vanadium that can be produced by the reaction of 40.0 g of V₂O₅ with 40.0 g of calcium based on the following chemical reaction? V₂O₅(s)+ 5Ca(l) $\rarr$ 2V(l)+ 5CaO(s)

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(Multiple Choice)

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Question 1

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How many silicon atoms are there in 1.00 g of silicon?

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Question 2

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A silver wire has a diameter of 0.500 mm. What length of this wire contains exactly 1.00 mol of silver? (density of Ag = 10.5 g/cm³)

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(Multiple Choice)

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Question 3

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The percent composition by mass of tartaric acid is: 32.01% C, 4.03% H, and 63.96% O. Given that the molecular mass of tartaric acid is 150 amu, determine its molecular formula.

(Short Answer)

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Question 4

How many grams of Cl₂ can be prepared from the reaction of 16.0 g of MnO₂ and 30.0 g of HCl according to the following chemical equation? MnO₂ + 4HCl $\rarr$ MnCl₂ + Cl₂ + 2H₂O

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Question 5

Calculate the volume of 0.15 mole of Br₂. The density of Br₂ is 3.12 g/mL.

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Question 6

Hydrogen chloride gas can be prepared by the following reaction: 2NaCl(s)+ H₂SO₄(aq) $\rarr$ 2HCl(g)+ Na₂SO₄(s) How many grams of HCl can be prepared from 2.00 mol H₂SO₄ and 150 g NaCl?

(Multiple Choice)

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Question 7

Calculate the mass of FeS formed when 9.42 g of iron reacts with 8.50 g of sulfur according to the following reaction. Fe(s)+ S(s) $\rarr$ FeS(s)

(Multiple Choice)

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Question 8

The mass of four moles of molecular bromine (Br₂)is

(Multiple Choice)

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Question 9

Calculate the molecular mass of menthol, C₁₀H₂₀O.

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Question 10

How many moles of HCl are represented by 1.0 * 10¹⁹ HCl molecules?

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Question 11

What is the coefficient preceding O₂ when the following combustion reaction of a fatty acid is properly balanced using the smallest set of whole numbers? C₁₈H₃₆O₂ + O₂ $\rarr$ CO₂ + H₂O

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Question 12

What is the mass of 0.20 mole of C₂H₆O (ethanol)?

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Question 13

When 22.0 g NaCl and 21.0 g H₂SO₄ are mixed and react according to the equation below, which is the limiting reagent? 2NaCl + H₂SO₄ $\rarr$ Na₂SO₄ + 2HCl

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Question 14

Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid. MnO₂(s)+ 4HCl(aq) $\rarr$ MnCl₂(aq)+ 2H₂O(l)+ Cl₂(g) According to the above reaction, which is the limiting reagent when 28 g of MnO₂ are reacted with 42 g of HCl?

(Multiple Choice)

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Question 15

How many grams of nitrogen are there in 7.5 g of Ca(NO₃)₂?

(Multiple Choice)

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Question 16

A compound was discovered whose composition by mass is 85.6% C and 14.4% H. Which of the following could be the molecular formula of this compound?

(Multiple Choice)

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Question 17

Which of the following samples contains the greatest number of atoms?

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Question 18

Common gases used in laboratories are generally obtained from pressurized metal gas cylinders, but for small amounts of occasionally-used gases, it is sometimes easier just to prepare them chemically. For example, oxygen gas can be prepared by heating KMnO₄(s)according to the following chemical reaction: 2KMnO₄(s) $\rarr$ K₂MnO₄(s)+ MnO₂(s)+ O₂(g) How many grams of KMnO₄ would you need to produce 0.27 moles of O₂, assuming 100% conversion? The molar mass of KMnO₄ is 158.034 g/mol.

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Question 19

What is the mass of 8.25 * 10¹⁹ UF₆ molecules?

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Question 20

Showing 1 - 20 of 168

Exam 3: Stoichiometry

What is the theoretical yield of vanadium that can be produced by the reaction of 40.0 g of V2O5 with 40.0 g of calcium based on the following chemical reaction? V2O5(s)+ 5Ca(l) →\rarr→ 2V(l)+ 5CaO(s)

How many silicon atoms are there in 1.00 g of silicon?

A silver wire has a diameter of 0.500 mm. What length of this wire contains exactly 1.00 mol of silver? (density of Ag = 10.5 g/cm3)

The percent composition by mass of tartaric acid is: 32.01% C, 4.03% H, and 63.96% O. Given that the molecular mass of tartaric acid is 150 amu, determine its molecular formula.

How many grams of Cl2 can be prepared from the reaction of 16.0 g of MnO2 and 30.0 g of HCl according to the following chemical equation? MnO2 + 4HCl →\rarr→ MnCl2 + Cl2 + 2H2O

Calculate the volume of 0.15 mole of Br2. The density of Br2 is 3.12 g/mL.

Hydrogen chloride gas can be prepared by the following reaction: 2NaCl(s)+ H2SO4(aq) →\rarr→ 2HCl(g)+ Na2SO4(s) How many grams of HCl can be prepared from 2.00 mol H2SO4 and 150 g NaCl?

Calculate the mass of FeS formed when 9.42 g of iron reacts with 8.50 g of sulfur according to the following reaction. Fe(s)+ S(s) →\rarr→ FeS(s)

The mass of four moles of molecular bromine (Br2)is

Calculate the molecular mass of menthol, C10H20O.

How many moles of HCl are represented by 1.0 * 1019 HCl molecules?

What is the coefficient preceding O2 when the following combustion reaction of a fatty acid is properly balanced using the smallest set of whole numbers? __ C18H36O2 + __ O2 →\rarr→ __ CO2 + __ H2O

What is the mass of 0.20 mole of C2H6O (ethanol)?

When 22.0 g NaCl and 21.0 g H2SO4 are mixed and react according to the equation below, which is the limiting reagent? 2NaCl + H2SO4 →\rarr→ Na2SO4 + 2HCl

Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid. MnO2(s)+ 4HCl(aq) →\rarr→ MnCl2(aq)+ 2H2O(l)+ Cl2(g) According to the above reaction, which is the limiting reagent when 28 g of MnO2 are reacted with 42 g of HCl?

How many grams of nitrogen are there in 7.5 g of Ca(NO3)2?

A compound was discovered whose composition by mass is 85.6% C and 14.4% H. Which of the following could be the molecular formula of this compound?

Which of the following samples contains the greatest number of atoms?

What is the mass of 8.25 * 1019 UF6 molecules?

Introduction

Atoms, Molecules, and Ions

Reactions in Aqueous Solution

Gases

Energy Relationships in Chemical Reactions

The Electronic Structure of Atoms

The Periodic Table

Chemical Bonding I: the Covalent Bond

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Introduction to Organic Chemistry

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

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Acid-Base Equilibria and Solubility Equilibria

Thermodynamics

Redox Reactions and Electrochemistry

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What is the theoretical yield of vanadium that can be produced by the reaction of 40.0 g of V₂O₅ with 40.0 g of calcium based on the following chemical reaction? V₂O₅(s)+ 5Ca(l) $\rarr$ 2V(l)+ 5CaO(s)

A silver wire has a diameter of 0.500 mm. What length of this wire contains exactly 1.00 mol of silver? (density of Ag = 10.5 g/cm³)

How many grams of Cl₂ can be prepared from the reaction of 16.0 g of MnO₂ and 30.0 g of HCl according to the following chemical equation? MnO₂ + 4HCl $\rarr$ MnCl₂ + Cl₂ + 2H₂O

Calculate the volume of 0.15 mole of Br₂. The density of Br₂ is 3.12 g/mL.

Hydrogen chloride gas can be prepared by the following reaction: 2NaCl(s)+ H₂SO₄(aq) $\rarr$ 2HCl(g)+ Na₂SO₄(s) How many grams of HCl can be prepared from 2.00 mol H₂SO₄ and 150 g NaCl?

Calculate the mass of FeS formed when 9.42 g of iron reacts with 8.50 g of sulfur according to the following reaction. Fe(s)+ S(s) $\rarr$ FeS(s)

The mass of four moles of molecular bromine (Br₂)is

Calculate the molecular mass of menthol, C₁₀H₂₀O.

How many moles of HCl are represented by 1.0 * 10¹⁹ HCl molecules?

What is the coefficient preceding O₂ when the following combustion reaction of a fatty acid is properly balanced using the smallest set of whole numbers? C₁₈H₃₆O₂ + O₂ $\rarr$ CO₂ + H₂O

What is the mass of 0.20 mole of C₂H₆O (ethanol)?

When 22.0 g NaCl and 21.0 g H₂SO₄ are mixed and react according to the equation below, which is the limiting reagent? 2NaCl + H₂SO₄ $\rarr$ Na₂SO₄ + 2HCl

Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid. MnO₂(s)+ 4HCl(aq) $\rarr$ MnCl₂(aq)+ 2H₂O(l)+ Cl₂(g) According to the above reaction, which is the limiting reagent when 28 g of MnO₂ are reacted with 42 g of HCl?

How many grams of nitrogen are there in 7.5 g of Ca(NO₃)₂?

What is the mass of 8.25 * 10¹⁹ UF₆ molecules?