What is the molecular mass of acetaminophen, C8H9NO2?

A) 43 amu B) 76 amu C) 151 amu D) 162 amu E) 125 amu A) 43 amu B) 76 amu C) 151 amu D) 162 amu E) 125 amu

What is the theoretical yield of vanadium, in moles, that can be produced by the reaction of 1.0 mole of V2O5 with 4.0 moles of calcium based on the following chemical equation? V2O5(s) + 5Ca(l) → 2V(l) + 5CaO(s)

A) 1.0 mol B) 1.6 mol C) 2.0 mol D) 0.80 mol E) 3.2 mol A) 1.0 mol B) 1.6 mol C) 2.0 mol D) 0.80 mol E) 3.2 mol

Balance the following equation for the combustion of benzene: C6H6(l) + O2(g) → H2O(g) + CO2(g)

A) C6H6(l) + 9O2(g) → 3H2O(g) + 6CO2(g) B) C6H6(l) + 9O2(g) → 6H2O(g) + 6CO2(g) C) 2C6H6(l) + 15O2(g) → 6H2O(g) + 12CO2(g) D) C6H6(l) + 15O2(g) → 3H2O(g) + 6CO2(g) E) 2C6H6(l) + 9O2(g) → 6H2O(g) + 12CO2(g) A) C6H6(l) + 9O2(g) → 3H2O(g) + 6CO2(g) B) C6H6(l) + 9O2(g) → 6H2O(g) + 6CO2(g) C) 2C6H6(l) + 15O2(g) → 6H2O(g) + 12CO2(g) D) C6H6(l) + 15O2(g) → 3H2O(g) + 6CO2(g) E) 2C6H6(l) + 9O2(g) → 6H2O(g) + 12CO2(g)

Balance the following equation: UO2(s) + HF(l) → UF4(s) + H2O(l)

A) UO2(s) + 2HF(l) → UF4(s) + H2O(l) B) UO2(s) + 4HF(l) → UF4(s) + 2H2O(l) C) UO2(s) + H4F4(l) → UF4(s) + H4O2(l) D) UO2(s) + 4HF(l) → UF4(s) + 4H2O(l) E) UO2(s) + 8HF(l) → 2UF4(s) + 4H2O(l) A) UO2(s) + 2HF(l) → UF4(s) + H2O(l) B) UO2(s) + 4HF(l) → UF4(s) + 2H2O(l) C) UO2(s) + H4F4(l) → UF4(s) + H4O2(l) D) UO2(s) + 4HF(l) → UF4(s) + 4H2O(l) E) UO2(s) + 8HF(l) → 2UF4(s) + 4H2O(l)

What mass of Cr can be produced by the reaction of 44.1 g of Cr2O3 with 35.0 g of Al according to the following chemical equation? 2Al + Cr2O3 → Al2O3 + 2Cr

A) 15.1 g B) 30.2 g C) 67.4 g D) 99.9g E) 104 g A) 15.1 g B) 30.2 g C) 67.4 g D) 99.9g E) 104 g

Exam 3: Stoichiometry: Ratios of Combination

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 → CO₂ + H₂O

(Multiple Choice)

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Question 81

Lead(II) sulfide was once used in glazing earthenware. It will also react with hydrogen peroxide to form lead(II) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265 g of lead(II) sulfide?

(Multiple Choice)

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Question 82

What mass of ammonia is formed when 5.36 g of nitrogen gas reacts with excess hydrogen gas?

(Multiple Choice)

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Question 83

What is the molecular mass of acetaminophen, C₈H₉NO₂?

(Multiple Choice)

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Question 84

What is the name given to the quantitative relationship between the substances that are consumed and produced in a chemical reaction?

(Multiple Choice)

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Question 85

What is the theoretical yield of vanadium, in moles, that can be produced by the reaction of 1.0 mole of V₂O₅ with 4.0 moles of calcium based on the following chemical equation? V₂O₅(s) + 5Ca(l) → 2V(l) + 5CaO(s)

(Multiple Choice)

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Question 86

Aluminum metal reacts with chlorine gas to form solid aluminum chloride. What mass of chlorine gas is required to react completely with 163 g of aluminum?

(Multiple Choice)

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Question 87

The molecular formula is a whole number multiple of the empirical formula.

(True/False)

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Question 88

Balance the following equation for the combustion of benzene: C₆H₆(l) + O₂(g) → H₂O(g) + CO₂(g)

(Multiple Choice)

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Question 89

What is the coefficient of H₂SO₄ when the following equation is properly balanced with the smallest set of whole numbers? Ca₃(PO₄)₂ + H₂SO₄→ CaSO₄ + H₃PO₄

(Multiple Choice)

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Question 90

Balance the following equation: UO₂(s) + HF(l) → UF₄(s) + H₂O(l)

(Multiple Choice)

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Question 91

Determine the number of ammonia molecules in 4.85 g of ammonia. (N_A = 6.022 × 10²³ mol^-1)

(Multiple Choice)

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Question 92

What mass of Cr can be produced by the reaction of 44.1 g of Cr₂O₃ with 35.0 g of Al according to the following chemical equation? 2Al + Cr₂O₃→ Al₂O₃ + 2Cr

(Multiple Choice)

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Question 93

There is only one distinct empirical formula for each compound that exists.

(True/False)

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Question 94

Calculate the formula mass of rubidium carbonate, Rb₂CO₃.

(Multiple Choice)

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Question 95

What mass of nitrogen gas is required to react completely with excess hydrogen gas to produce 13.6 g of ammonia?

(Multiple Choice)

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Question 96

What is the theoretical yield of aluminum that can be produced by the reaction of 60.0 g of aluminum oxide with 30.0 g of carbon according to the following chemical equation? Al₂O₃ + 3C → 2Al + 3CO

(Multiple Choice)

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Question 97

What is the mass in grams of 0.250 mol of the common antacid calcium carbonate?

(Multiple Choice)

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Question 98

The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2% O. The molar mass of this compound is 284.5 g/mol. What is the molecular formula of the compound?

(Multiple Choice)

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Question 99

What mass of nitrogen gas is required to react completely with 2.79 g of hydrogen gas to produce ammonia?

(Multiple Choice)

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Question 100

Showing 81 - 100 of 137

Exam 3: Stoichiometry: Ratios of Combination

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 → ________ CO2 + ________ H2O

Lead(II) sulfide was once used in glazing earthenware. It will also react with hydrogen peroxide to form lead(II) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265 g of lead(II) sulfide?

What mass of ammonia is formed when 5.36 g of nitrogen gas reacts with excess hydrogen gas?

What is the molecular mass of acetaminophen, C8H9NO2?

What is the name given to the quantitative relationship between the substances that are consumed and produced in a chemical reaction?

What is the theoretical yield of vanadium, in moles, that can be produced by the reaction of 1.0 mole of V2O5 with 4.0 moles of calcium based on the following chemical equation? V2O5(s) + 5Ca(l) → 2V(l) + 5CaO(s)

Aluminum metal reacts with chlorine gas to form solid aluminum chloride. What mass of chlorine gas is required to react completely with 163 g of aluminum?

The molecular formula is a whole number multiple of the empirical formula.

Balance the following equation for the combustion of benzene: C6H6(l) + O2(g) → H2O(g) + CO2(g)

What is the coefficient of H2SO4 when the following equation is properly balanced with the smallest set of whole numbers? ________ Ca3(PO4)2 + ________ H2SO4 → ________ CaSO4 + ________ H3PO4

Balance the following equation: UO2(s) + HF(l) → UF4(s) + H2O(l)

Determine the number of ammonia molecules in 4.85 g of ammonia. (NA = 6.022 × 1023 mol-1)

What mass of Cr can be produced by the reaction of 44.1 g of Cr2O3 with 35.0 g of Al according to the following chemical equation? 2Al + Cr2O3 → Al2O3 + 2Cr

There is only one distinct empirical formula for each compound that exists.

Calculate the formula mass of rubidium carbonate, Rb2CO3.

What mass of nitrogen gas is required to react completely with excess hydrogen gas to produce 13.6 g of ammonia?

What is the theoretical yield of aluminum that can be produced by the reaction of 60.0 g of aluminum oxide with 30.0 g of carbon according to the following chemical equation? Al2O3 + 3C → 2Al + 3CO

What is the mass in grams of 0.250 mol of the common antacid calcium carbonate?

The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2% O. The molar mass of this compound is 284.5 g/mol. What is the molecular formula of the compound?

What mass of nitrogen gas is required to react completely with 2.79 g of hydrogen gas to produce ammonia?

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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 → CO₂ + H₂O

What is the molecular mass of acetaminophen, C₈H₉NO₂?

What is the theoretical yield of vanadium, in moles, that can be produced by the reaction of 1.0 mole of V₂O₅ with 4.0 moles of calcium based on the following chemical equation? V₂O₅(s) + 5Ca(l) → 2V(l) + 5CaO(s)

Balance the following equation for the combustion of benzene: C₆H₆(l) + O₂(g) → H₂O(g) + CO₂(g)

What is the coefficient of H₂SO₄ when the following equation is properly balanced with the smallest set of whole numbers? Ca₃(PO₄)₂ + H₂SO₄→ CaSO₄ + H₃PO₄

Balance the following equation: UO₂(s) + HF(l) → UF₄(s) + H₂O(l)

Determine the number of ammonia molecules in 4.85 g of ammonia. (N_A = 6.022 × 10²³ mol^-1)

What mass of Cr can be produced by the reaction of 44.1 g of Cr₂O₃ with 35.0 g of Al according to the following chemical equation? 2Al + Cr₂O₃→ Al₂O₃ + 2Cr

Calculate the formula mass of rubidium carbonate, Rb₂CO₃.

What is the theoretical yield of aluminum that can be produced by the reaction of 60.0 g of aluminum oxide with 30.0 g of carbon according to the following chemical equation? Al₂O₃ + 3C → 2Al + 3CO