How many carbon atoms are there in 10 lbs of sugar, C12H22O11?

A) 9.6 * 1025 atoms B) 8.0 * 1024 atoms C) 159 atoms D) 4.21 atoms E) 342 atoms A) 9.6 * 1025 atoms B) 8.0 * 1024 atoms C) 159 atoms D) 4.21 atoms E) 342 atoms

Ammonia reacts with diatomic oxygen to form nitric oxide and water vapor: 4NH3 + 5O2 $\rarr$4NO + 6H2O What is the theoretical yield of water, in moles, when 40.0 g NH3 and 50.0 g O2 are mixed and allowed to react?

A) 1.30 mol B) 1.57 mol C) 1.87 mol D) 3.53 mol E) None of these. A) 1.30 mol B) 1.57 mol C) 1.87 mol D) 3.53 mol E) None of these.

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

What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the chemical equation below? 2Al + Cr2O3 $\rarr$Al2O3 + 2Cr

A) 7.7 g B) 15.4 g C) 27.3 g D) 30.8 g E) 49.9 g A) 7.7 g B) 15.4 g C) 27.3 g D) 30.8 g E) 49.9 g

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

Exam 3: Mass Relationships in Chemical Reactions

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 reaction? Al₂O₃ + 3C $\rarr$ 2Al + 3CO

(Multiple Choice)

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Question 121

How many carbon atoms are there in 10 lbs of sugar, C₁₂H₂₂O₁₁?

(Multiple Choice)

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Question 122

What percent by mass of oxygen is present in carbon monoxide, CO?

(Short Answer)

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Question 123

An average atom of uranium (U)is approximately how many times heavier than an atom of potassium?

(Multiple Choice)

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Question 124

What is the coefficient of O₂ when the following equation is properly balanced with the smallest set of whole numbers? _ CH₃OH + _ O₂ $\rarr$ _ CO₂ + _ H₂O

(Multiple Choice)

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Question 125

An atom of bromine has a mass about four times greater than that of an atom of neon. How many grams of neon will contain the same number of atoms as 1,000 g of bromine?

(Multiple Choice)

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Question 126

Calculate the number of moles of cesium in 50.0 g of cesium.

(Multiple Choice)

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Question 127

Ammonia reacts with diatomic oxygen to form nitric oxide and water vapor: 4NH₃ + 5O₂ $\rarr$ 4NO + 6H₂O What is the theoretical yield of water, in moles, when 40.0 g NH₃ and 50.0 g O₂ are mixed and allowed to react?

(Multiple Choice)

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Question 128

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

(Short Answer)

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Question 129

A 0.600 g sample of a compound of arsenic and oxygen was found to contain 0.454 g of arsenic. What is the empirical formula of the compound?

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Question 130

The empirical formula of a compound of uranium and fluorine that is composed of 67.6% uranium and 32.4% fluorine is

(Multiple Choice)

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Question 131

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

(Multiple Choice)

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Question 132

How many grams of sodium are there in 10.g of sodium sulfate, Na₂SO₄?

(Multiple Choice)

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Question 133

How many ICl₃ molecules are present in 1.75 kg of ICl₃?

(Short Answer)

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Question 134

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 135

A sample of unknown ore was analyzed and found to contain 12.7% Al, 19.7% N, and 67.6% O.What is the empirical formula of this ore?

(Short Answer)

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Question 136

What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr₂O₃ with 8.00 g of aluminum according to the chemical equation below? 2Al + Cr₂O₃ $\rarr$ Al₂O₃ + 2Cr

(Multiple Choice)

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Question 137

An atom of helium has a mass about four times greater than that of an atom of hydrogen.Which choice makes the correct comparison of the relative numbers of helium and hydrogen atoms in equal masses of the two elements?

(Multiple Choice)

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Question 138

Ferrocene, Fe(C₅H₅)₂(s), can be prepared by reacting 3.0 g of FeCl₂(s)with an equal mass of cyclopentadiene, C₅H₆(l), and an excess of KOH, as shown in the following reaction FeCl₂ + 2C₅H₆ + 2KOH $\rarr$ FeC₁₀H₁₀ + 2H₂O A.What is the limiting reagent in this procedure? B.Based on your answer to part A, what mass of Fe(C₅H₅)₂ could theoretically be formed? C.A student who carried out this reaction obtained 2.7 g of ferrocene.What was the percent yield for this reaction?

(Essay)

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Question 139

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 140

Showing 121 - 140 of 168

Exam 3: Mass Relationships in Chemical Reactions

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 reaction? Al2O3 + 3C →\rarr→ 2Al + 3CO

How many carbon atoms are there in 10 lbs of sugar, C12H22O11?

What percent by mass of oxygen is present in carbon monoxide, CO?

An average atom of uranium (U)is approximately how many times heavier than an atom of potassium?

What is the coefficient of O2 when the following equation is properly balanced with the smallest set of whole numbers? ___ CH3OH + ___ O2 →\rarr→ ___ CO2 + ___ H2O

An atom of bromine has a mass about four times greater than that of an atom of neon. How many grams of neon will contain the same number of atoms as 1,000 g of bromine?

Calculate the number of moles of cesium in 50.0 g of cesium.

Ammonia reacts with diatomic oxygen to form nitric oxide and water vapor: 4NH3 + 5O2 →\rarr→ 4NO + 6H2O What is the theoretical yield of water, in moles, when 40.0 g NH3 and 50.0 g O2 are mixed and allowed to react?

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

A 0.600 g sample of a compound of arsenic and oxygen was found to contain 0.454 g of arsenic. What is the empirical formula of the compound?

The empirical formula of a compound of uranium and fluorine that is composed of 67.6% uranium and 32.4% fluorine is

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

How many grams of sodium are there in 10.g of sodium sulfate, Na2SO4?

How many ICl3 molecules are present in 1.75 kg of ICl3?

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 sample of unknown ore was analyzed and found to contain 12.7% Al, 19.7% N, and 67.6% O.What is the empirical formula of this ore?

What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the chemical equation below? 2Al + Cr2O3 →\rarr→ Al2O3 + 2Cr

An atom of helium has a mass about four times greater than that of an atom of hydrogen.Which choice makes the correct comparison of the relative numbers of helium and hydrogen atoms in equal masses of the two elements?

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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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 reaction? Al₂O₃ + 3C $\rarr$ 2Al + 3CO

How many carbon atoms are there in 10 lbs of sugar, C₁₂H₂₂O₁₁?

What is the coefficient of O₂ when the following equation is properly balanced with the smallest set of whole numbers? _ CH₃OH + _ O₂ $\rarr$ _ CO₂ + _ H₂O

Ammonia reacts with diatomic oxygen to form nitric oxide and water vapor: 4NH₃ + 5O₂ $\rarr$ 4NO + 6H₂O What is the theoretical yield of water, in moles, when 40.0 g NH₃ and 50.0 g O₂ are mixed and allowed to react?

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

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

How many grams of sodium are there in 10.g of sodium sulfate, Na₂SO₄?

How many ICl₃ molecules are present in 1.75 kg of ICl₃?

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?

What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr₂O₃ with 8.00 g of aluminum according to the chemical equation below? 2Al + Cr₂O₃ $\rarr$ Al₂O₃ + 2Cr

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