The formula weight of silver chromate (Ag2CrO4) is _ amu.

A) 159.87 B) 175.87 C) 223.87 D) 331.73 E) 339.86 A) 159.87 B) 175.87 C) 223.87 D) 331.73 E) 339.86

The combustion of propane (C3H8) in the presence of excess oxygen yields CO2 and H2O: When 2.5 mol of O2 are consumed in their reaction, mol of CO2 are produced.

A) 2.5 B) 5.0 C) 3.0 D) 1.5 E) 6.0 A) 2.5 B) 5.0 C) 3.0 D) 1.5 E) 6.0

A sample of C3H8O that contains 200 molecules contains _ carbon atoms.

A) 4.01 × 1025 B) 1.20 × 1026 C) 600 D) 200 E) 3.61 × 1026 A) 4.01 × 1025 B) 1.20 × 1026 C) 600 D) 200 E) 3.61 × 1026

A compound is composed of only C, H, and O. The combustion of a 0.519- g sample of the compound yields 1.24 g of CO2 and 0.255 g of H2O. What is the empirical formula of the compound?

A) C6H6O B) CH3O C) C3H3O D) C2H6O2 E) C2H6O5 A) C6H6O B) CH3O C) C3H3O D) C2H6O2 E) C2H6O5

The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O: The combustion of 43.9 g of ammonia produces g of NO2.

A) 2.58 B) 178 C) 43.9 D) 0.954 E) 119 A) 2.58 B) 178 C) 43.9 D) 0.954 E) 119

Combustion of a 1.031- g sample of a compound containing only carbon, hydrogen, and oxygen produced 2.265 g of CO2 and 1.236 g of H2O. What is the empirical formula of the compound?

A) C3H5O B) C3H8O C) C3H9O3 D) C6H16O2 E) C3H6O3 A) C3H5O B) C3H8O C) C3H9O3 D) C6H16O2 E) C3H6O3

The formula weight of calcium nitrate (Ca(NO3)2) is _ amu.

A) 150.1 B) 204.2 C) 102.1 D) 116.1 E) 164.0 A) 150.1 B) 204.2 C) 102.1 D) 116.1 E) 164.0

Exam 3: Stoichiometry: Calculations With Chemical Formulas and Equations

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Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: A 7.1- g sample of N₂requires g of H₂for complete reaction.

(Multiple Choice)

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Question 21

Which one of the following substances is the product of this combination reaction? Al (s) + I₂(s) -

(Multiple Choice)

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Question 22

The formula weight of silver chromate (Ag₂CrO₄) is _ amu.

(Multiple Choice)

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Question 23

When the following equation is balanced, the coefficient of water is _.

(Multiple Choice)

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Question 24

The combustion of propane (C₃H₈) in the presence of excess oxygen yields CO₂and H₂O: When 2.5 mol of O₂are consumed in their reaction, mol of CO₂are produced.

(Multiple Choice)

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Question 25

A sample of C₃H₈O that contains 200 molecules contains _ carbon atoms.

(Multiple Choice)

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Question 26

The reaction used to inflate automobile airbags _.

(Multiple Choice)

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Question 27

Of the reactions below, which one is not a combination reaction?

(Multiple Choice)

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Question 28

A compound is composed of only C, H, and O. The combustion of a 0.519- g sample of the compound yields 1.24 g of CO₂and 0.255 g of H₂O. What is the empirical formula of the compound?

(Multiple Choice)

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Question 29

Complete and balance the following reaction, given that elemental rubidium reacts with elemental sulfur to form Rb₂S (s). Na (s) + S (s) -

(Short Answer)

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Question 30

The quantity of product that is calculated to form when all of the limiting reagent reacts is called the actual yield.

(True/False)

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Question 31

When the following equation is balanced, the coefficient of H₂is _ .

(Multiple Choice)

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Question 32

The combustion of ammonia in the presence of excess oxygen yields NO₂and H₂O: The combustion of 43.9 g of ammonia produces g of NO₂.

(Multiple Choice)

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Question 33

Combustion of a 1.031- g sample of a compound containing only carbon, hydrogen, and oxygen produced 2.265 g of CO₂and 1.236 g of H₂O. What is the empirical formula of the compound?

(Multiple Choice)

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Question 34

When the following equation is balanced, the coefficient of dinitrogen pentoxide is .

(Multiple Choice)

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Question 35

The formula weight of calcium nitrate (Ca(NO₃)₂) is _ amu.

(Multiple Choice)

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Question 36

When the following equation is balanced, the coefficient of Al is .

(Multiple Choice)

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Question 37

When the following equation is balanced, the coefficient of H₂O is _ .

(Multiple Choice)

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Question 38

When the following equation is balanced, the coefficient of Al₂O₃is _ .

(Multiple Choice)

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Question 39

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: In a particular experiment, a 5.00- g sample of CaO is reacted with excess water and 6.11 g of Ca(OH)₂is recovered. What is the percent yield in this experiment?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 134

Exam 3: Stoichiometry: Calculations With Chemical Formulas and Equations

Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: A 7.1- g sample of N2 requires g of H2 for complete reaction.

Which one of the following substances is the product of this combination reaction? Al (s) + I2 (s) -

The formula weight of silver chromate (Ag2CrO4) is _ amu.

When the following equation is balanced, the coefficient of water is _.

The combustion of propane (C3H8) in the presence of excess oxygen yields CO2 and H2O: When 2.5 mol of O2 are consumed in their reaction, mol of CO2 are produced.

A sample of C3H8O that contains 200 molecules contains _ carbon atoms.

The reaction used to inflate automobile airbags _.

Of the reactions below, which one is not a combination reaction?

A compound is composed of only C, H, and O. The combustion of a 0.519- g sample of the compound yields 1.24 g of CO2 and 0.255 g of H2O. What is the empirical formula of the compound?

Complete and balance the following reaction, given that elemental rubidium reacts with elemental sulfur to form Rb2S (s). Na (s) + S (s) -

The quantity of product that is calculated to form when all of the limiting reagent reacts is called the actual yield.

When the following equation is balanced, the coefficient of H2 is _ .

The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O: The combustion of 43.9 g of ammonia produces g of NO2.

Combustion of a 1.031- g sample of a compound containing only carbon, hydrogen, and oxygen produced 2.265 g of CO2 and 1.236 g of H2O. What is the empirical formula of the compound?

When the following equation is balanced, the coefficient of dinitrogen pentoxide is .

The formula weight of calcium nitrate (Ca(NO3)2) is _ amu.

When the following equation is balanced, the coefficient of Al is .

When the following equation is balanced, the coefficient of H2O is _ .

When the following equation is balanced, the coefficient of Al2O3 is _ .

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: In a particular experiment, a 5.00- g sample of CaO is reacted with excess water and 6.11 g of Ca(OH)2 is recovered. What is the percent yield in this experiment?

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Aqueous Reactions and Solution Stoichiometry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

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Chemical Equilibrium

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Additional Aspects of Equilibria

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Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: A 7.1- g sample of N₂requires g of H₂for complete reaction.

Which one of the following substances is the product of this combination reaction? Al (s) + I₂(s) -

The formula weight of silver chromate (Ag₂CrO₄) is _ amu.

The combustion of propane (C₃H₈) in the presence of excess oxygen yields CO₂and H₂O: When 2.5 mol of O₂are consumed in their reaction, mol of CO₂are produced.

A sample of C₃H₈O that contains 200 molecules contains _ carbon atoms.

A compound is composed of only C, H, and O. The combustion of a 0.519- g sample of the compound yields 1.24 g of CO₂and 0.255 g of H₂O. What is the empirical formula of the compound?

Complete and balance the following reaction, given that elemental rubidium reacts with elemental sulfur to form Rb₂S (s). Na (s) + S (s) -

When the following equation is balanced, the coefficient of H₂is _ .

The combustion of ammonia in the presence of excess oxygen yields NO₂and H₂O: The combustion of 43.9 g of ammonia produces g of NO₂.

Combustion of a 1.031- g sample of a compound containing only carbon, hydrogen, and oxygen produced 2.265 g of CO₂and 1.236 g of H₂O. What is the empirical formula of the compound?

The formula weight of calcium nitrate (Ca(NO₃)₂) is _ amu.

When the following equation is balanced, the coefficient of H₂O is _ .

When the following equation is balanced, the coefficient of Al₂O₃is _ .

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: In a particular experiment, a 5.00- g sample of CaO is reacted with excess water and 6.11 g of Ca(OH)₂is recovered. What is the percent yield in this experiment?