How many grams of CO2 would result from the complete combustion of 4.00 mol butane (C4H10)?

A) 24.2 g B) 176 g C) 704 g D) 96.9 g E) 1410 g A) 24.2 g B) 176 g C) 704 g D) 96.9 g E) 1410 g

Assuming complete combustion, how many grams of butane (C4H10) would be required to consume 32.0 g O2?

A) 1.82 g B) 16.6 g C) 8.30 g D) 4.47 g E) 8.94 g A) 1.82 g B) 16.6 g C) 8.30 g D) 4.47 g E) 8.94 g

If 20.0 kg CO2 are produced from the combustion of butane (C4H10), calculate the mass of oxygen gas that was consumed.

A) 23.6 kg B) 18.2 kg C) 11.8 kg D) 739 g E) 454 g A) 23.6 kg B) 18.2 kg C) 11.8 kg D) 739 g E) 454 g

Diesel fuel for automobiles and trucks is a mixture of hydrocarbons that can be modeled by C 16H34.How many grams of O2 are needed to react with 0.500 mol C16H34?

A) 458 g B) 392 g C) 784 g D) 295 g E) 196 g A) 458 g B) 392 g C) 784 g D) 295 g E) 196 g

Quicklime, CaO (56.08 g/mol), and water can be produced by heating calcium hydroxide, Ca(OH)2 (74.09 g/mol).What is the percent yield if 45.0 g of quicklime are obtained from 90.0 g of calcium hydroxide?

A) 75.7% B) 66.1% C) 37.8% D) 80.2% E) 50.0% A) 75.7% B) 66.1% C) 37.8% D) 80.2% E) 50.0%

Fe2O3(s) and powdered aluminum can react with great output of heat to form molten iron and Al 2O3.When this reaction equation is balanced, what are the stoichiometric coefficients in the following order: Fe2O3, Al, Fe, Al2O3?

A) 1, 1, 1, 1 B) 2, 2, 2, 2 C) 1, 2, 2, 1 D) 2, 1, 1, 2 E) 1, 1, 2, 2 A) 1, 1, 1, 1 B) 2, 2, 2, 2 C) 1, 2, 2, 1 D) 2, 1, 1, 2 E) 1, 1, 2, 2

Exam 7: Stoichiometry Mass Relationships and Chemical Reactions

Hydrogen peroxide decomposes to produce water and oxygen.Which of the following statements is NOT correct? 2H₂O₂ (l) $\rightarrow$ 2H₂O(l) + O₂ (g)

(Multiple Choice)

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Question 41

Nicotine is composed of carbon, hydrogen, and nitrogen.A 20.000 g sample was found to contain 14.807 g C and 1.7396 g H.Find the empirical formula of nicotine.

(Short Answer)

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Question 42

A hydrocarbon molecule contains twice as many hydrogen atoms as carbon atoms.Its molar mass is 84.15 g/mol.What is the molecular formula for the hydrocarbon?

(Multiple Choice)

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Question 43

How many grams of CO₂ would result from the complete combustion of 4.00 mol butane (C₄H₁₀)?

(Multiple Choice)

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Question 44

Assuming complete combustion, how many grams of butane (C₄H₁₀) would be required to consume 32.0 g O₂?

(Multiple Choice)

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Question 45

Which statement regarding photosynthesis is FALSE? In the process of photosynthesis,

(Multiple Choice)

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Question 46

If 20.0 kg CO₂ are produced from the combustion of butane (C₄H₁₀), calculate the mass of oxygen gas that was consumed.

(Multiple Choice)

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Question 47

Diesel fuel for automobiles and trucks is a mixture of hydrocarbons that can be modeled by C ₁₆H₃₄.How many grams of O₂ are needed to react with 0.500 mol C₁₆H₃₄?

(Multiple Choice)

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Question 48

Calcium hydride (CaH₂, 42.10 g/mol) is so reactive with water 18.02 g/mol) that it can be used to remove traces of water from nonaqueous solvents.What mass of the excess reactant will be left over if 24.6 g CaH₂ is added to a large volume of solvent that contains 14.0 g H₂O? CaH₂ (s) +2H₂ O(l) $\rightarrow$ Ca(OH)₂ (s) + 2H₂ (g)

(Multiple Choice)

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Question 49

Which relationship regarding the quantities of reactants and products associated with the following reaction is NOT correct? 6H₂ O(l) + P₄ O₁₀ (s) $\rightarrow$ 4 H₃ PO₄ (aq)

(Multiple Choice)

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Question 50

Carbon emissions by China in 2012 were estimated at approximately 2.6 * 10⁹ metric tons (1 metric ton = 1000 kg).This is equivalent to how many kilograms of CO₂?

(Essay)

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Question 51

Acetylsalicylic acid, the active ingredient in aspirin, contains carbon, hydrogen, and oxygen.The complete combustion of 1.000 g acetylsalicylic acid produces 2.199 g CO₂ and 0.400 g H₂O.Mass spectrometry experiments showed that its molar mass is less than 200 g/mol.What is the molecular formula of acetylsalicylic acid?

(Short Answer)

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Question 52

Adipic acid is 49.31% C, 6.90% H, and 43.79% O by mass.Find its empirical formula.

(Short Answer)

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Question 53

Which statement about the following chemical reaction is NOT correct? 3 H₂ (g) + N₂ (g) $\rightarrow$ 2 NH₃ (g)

(Multiple Choice)

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Question 54

Mesitylene is a liquid hydrocarbon.If 0.115 g of this compound is burned in pure oxygen to give 0.3790 g CO₂ and 0.1035 g H₂O, what is the empirical formula of the compound?

(Short Answer)

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Question 55

As ammonium hydrogen carbonate (NH₄HCO₃, 79.6 g/mol) is heated, it breaks down into three gases: ammonia, water, and carbon dioxide.For each 20.0 g of ammonium hydrogen carbonate heated (about 4 tsp), how many grams of carbon dioxide are produced?

(Multiple Choice)

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Question 56

Quicklime, CaO (56.08 g/mol), and water can be produced by heating calcium hydroxide, Ca(OH)₂ (74.09 g/mol).What is the percent yield if 45.0 g of quicklime are obtained from 90.0 g of calcium hydroxide?

(Multiple Choice)

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Question 57

Analysis of two uranium fluoride compounds yields the following data: Compound I is 75.80% U by mass; compound II has an F-to-U mass ratio that is 1.5 times that of compound I.What is the empirical formula for compound II?

(Multiple Choice)

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Question 58

Acrylonitrile (53.07 g/mol) can be produced from propylene (42.09 g/mol) according to the reaction shown below.Find the percent yield if 1250 g C₃H₆ produces 722 g H₂O (18.02 g/mol) as a by-product. 4 C₃ H₆ (g) + 6 NO(g) $\rightarrow$ 4 C₃ H₃ N(l) +6 H₂O(l) + N₂ (g)

(Short Answer)

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Question 59

Fe₂O₃(s) and powdered aluminum can react with great output of heat to form molten iron and Al ₂O₃.When this reaction equation is balanced, what are the stoichiometric coefficients in the following order: Fe₂O₃, Al, Fe, Al₂O₃?

(Multiple Choice)

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Question 60

Showing 41 - 60 of 140

Exam 7: Stoichiometry Mass Relationships and Chemical Reactions

Hydrogen peroxide decomposes to produce water and oxygen.Which of the following statements is NOT correct? 2H2O2 (l) →\rightarrow→ 2H2O(l) + O2 (g)

Nicotine is composed of carbon, hydrogen, and nitrogen.A 20.000 g sample was found to contain 14.807 g C and 1.7396 g H.Find the empirical formula of nicotine.

A hydrocarbon molecule contains twice as many hydrogen atoms as carbon atoms.Its molar mass is 84.15 g/mol.What is the molecular formula for the hydrocarbon?

How many grams of CO2 would result from the complete combustion of 4.00 mol butane (C4H10)?

Assuming complete combustion, how many grams of butane (C4H10) would be required to consume 32.0 g O2?

Which statement regarding photosynthesis is FALSE? In the process of photosynthesis,

If 20.0 kg CO2 are produced from the combustion of butane (C4H10), calculate the mass of oxygen gas that was consumed.

Diesel fuel for automobiles and trucks is a mixture of hydrocarbons that can be modeled by C 16H34.How many grams of O2 are needed to react with 0.500 mol C16H34?

Which relationship regarding the quantities of reactants and products associated with the following reaction is NOT correct? 6H2 O(l) + P4 O10 (s) →\rightarrow→ 4 H3 PO4 (aq)

Carbon emissions by China in 2012 were estimated at approximately 2.6 * 109 metric tons (1 metric ton = 1000 kg).This is equivalent to how many kilograms of CO2?

Adipic acid is 49.31% C, 6.90% H, and 43.79% O by mass.Find its empirical formula.

Which statement about the following chemical reaction is NOT correct? 3 H2 (g) + N2 (g) →\rightarrow→ 2 NH3 (g)

Mesitylene is a liquid hydrocarbon.If 0.115 g of this compound is burned in pure oxygen to give 0.3790 g CO2 and 0.1035 g H2O, what is the empirical formula of the compound?

As ammonium hydrogen carbonate (NH4HCO3, 79.6 g/mol) is heated, it breaks down into three gases: ammonia, water, and carbon dioxide.For each 20.0 g of ammonium hydrogen carbonate heated (about 4 tsp), how many grams of carbon dioxide are produced?

Quicklime, CaO (56.08 g/mol), and water can be produced by heating calcium hydroxide, Ca(OH)2 (74.09 g/mol).What is the percent yield if 45.0 g of quicklime are obtained from 90.0 g of calcium hydroxide?

Analysis of two uranium fluoride compounds yields the following data: Compound I is 75.80% U by mass; compound II has an F-to-U mass ratio that is 1.5 times that of compound I.What is the empirical formula for compound II?

Acrylonitrile (53.07 g/mol) can be produced from propylene (42.09 g/mol) according to the reaction shown below.Find the percent yield if 1250 g C3H6 produces 722 g H2O (18.02 g/mol) as a by-product. 4 C3 H6 (g) + 6 NO(g) →\rightarrow→ 4 C3 H3 N(l) +6 H2O(l) + N2 (g)

Fe2O3(s) and powdered aluminum can react with great output of heat to form molten iron and Al 2O3.When this reaction equation is balanced, what are the stoichiometric coefficients in the following order: Fe2O3, Al, Fe, Al2O3?

Matter and Energy an Atomic Perspective

Atoms, Ions, and Molecules the Building Blocks of Matter

Atomic Structure Explaining the Properties of Elements

Chemical Bonding Understanding Climate Change

Bonding Theories Explaining Molecular Geometry

Intermolecular Forces Attractions Between Particles

Aqueous Solutions Chemistry of the Hydrosphere

Thermochemistry Energy Changes in Chemical Reactions

Properties of Gases the Air We Breathe

Properties of Solutions Their Concentrations and Colligative Properties

Thermodynamics Why Chemical Reactions Happen

Chemical Kinetics Clearing the Air

Chemical Equilibrium Equal but Opposite Reaction Rates

Acid-Base Equilibria Proton Transfer in Biological Systems

Additional Aqueous Equilibria Chemistry and the Oceans

Electrochemistry the Quest for Clean Energy

The Solid State a Particulate View

Organic Chemistry Fuels, Pharmaceuticals, and Modern Materials

Biochemistry the Compounds of Life

Nuclear Chemistry the Risks and Benefits

The Main Group Elements Life and the Periodic Table

Transition Metals Biological and Medical Applications

Filters

Hydrogen peroxide decomposes to produce water and oxygen.Which of the following statements is NOT correct? 2H₂O₂ (l) $\rightarrow$ 2H₂O(l) + O₂ (g)

How many grams of CO₂ would result from the complete combustion of 4.00 mol butane (C₄H₁₀)?

Assuming complete combustion, how many grams of butane (C₄H₁₀) would be required to consume 32.0 g O₂?

If 20.0 kg CO₂ are produced from the combustion of butane (C₄H₁₀), calculate the mass of oxygen gas that was consumed.

Diesel fuel for automobiles and trucks is a mixture of hydrocarbons that can be modeled by C ₁₆H₃₄.How many grams of O₂ are needed to react with 0.500 mol C₁₆H₃₄?

Which relationship regarding the quantities of reactants and products associated with the following reaction is NOT correct? 6H₂ O(l) + P₄ O₁₀ (s) $\rightarrow$ 4 H₃ PO₄ (aq)

Carbon emissions by China in 2012 were estimated at approximately 2.6 * 10⁹ metric tons (1 metric ton = 1000 kg).This is equivalent to how many kilograms of CO₂?

Which statement about the following chemical reaction is NOT correct? 3 H₂ (g) + N₂ (g) $\rightarrow$ 2 NH₃ (g)

Mesitylene is a liquid hydrocarbon.If 0.115 g of this compound is burned in pure oxygen to give 0.3790 g CO₂ and 0.1035 g H₂O, what is the empirical formula of the compound?

As ammonium hydrogen carbonate (NH₄HCO₃, 79.6 g/mol) is heated, it breaks down into three gases: ammonia, water, and carbon dioxide.For each 20.0 g of ammonium hydrogen carbonate heated (about 4 tsp), how many grams of carbon dioxide are produced?

Quicklime, CaO (56.08 g/mol), and water can be produced by heating calcium hydroxide, Ca(OH)₂ (74.09 g/mol).What is the percent yield if 45.0 g of quicklime are obtained from 90.0 g of calcium hydroxide?

Acrylonitrile (53.07 g/mol) can be produced from propylene (42.09 g/mol) according to the reaction shown below.Find the percent yield if 1250 g C₃H₆ produces 722 g H₂O (18.02 g/mol) as a by-product. 4 C₃ H₆ (g) + 6 NO(g) $\rightarrow$ 4 C₃ H₃ N(l) +6 H₂O(l) + N₂ (g)

Fe₂O₃(s) and powdered aluminum can react with great output of heat to form molten iron and Al ₂O₃.When this reaction equation is balanced, what are the stoichiometric coefficients in the following order: Fe₂O₃, Al, Fe, Al₂O₃?