How many H+ ions can the acid,H2SO4,donate per molecule?

A) 0 B) 1 C) 2 D) 3 A) 0 B) 1 C) 2 D) 3

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s)+ H2O(l)→ Ca(OH)2(s) 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?

A) 122 B) 1.22 C) 7.19 D) 92.5 E) 81.9 A) 122 B) 1.22 C) 7.19 D) 92.5 E) 81.9

Give the theoretical yield,in grams,of CO2 from the reaction of 4.000 moles of C8H18 with 4.000 moles of O2. 2 C8H18 + 25 O2 → 16 CO2 + 18 H2O

A) 112.7 g B) 102.4 g C) 176.0 g D) 704.0 g A) 112.7 g B) 102.4 g C) 176.0 g D) 704.0 g

Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3 NO2(g)+ H2O(l)→ HNO3(l)+ NO(g) Suppose that 4 mol NO2 and 2 H2O mol combine and react completely.How many Moles of NO are produced after the reaction has completed?

A) 2 B) 1.33 C) 3 D) 4 A) 2 B) 1.33 C) 3 D) 4

What is the concentration of an AlCl3 solution if 150.mL of the solution contains 450.mg of Cl- ion?

A) 2.82 × 10-2 M B) 6.75 × 10-2 M C) 8.46 × 10-2 M D) 2.54 × 10-1 M A) 2.82 × 10-2 M B) 6.75 × 10-2 M C) 8.46 × 10-2 M D) 2.54 × 10-1 M

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s)+ N2(g)→ 2Li3N(s) In a particular experiment,3.50 g samples of each reagent are reacted.The theoretical yield of lithium nitride is ________ g.

A) 3.52 B) 2.93 C) 17.6 D) 5.85 E) 8.7 A) 3.52 B) 2.93 C) 17.6 D) 5.85 E) 8.7

Exam 4: Chemical Quantities and Aqueous Reactions

Which substance is the limiting reactant when 2.0 g of sulfur reacts with 3.0 g of oxygen and 4.0 g of sodium hydroxide according to the following chemical equation: 2 S(s)+ 3 O₂(g)+ 4 NaOH(aq)→ 2 Na₂SO₄(aq)+ 2 H₂O(l)

(Multiple Choice)

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Question 121

How many H⁺ ions can the acid,H₂SO₄,donate per molecule?

(Multiple Choice)

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Question 122

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s)+ H₂O(l)→ Ca(OH)₂(s) 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?

(Multiple Choice)

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Question 123

Give the theoretical yield,in grams,of CO₂from the reaction of 4.000 moles of C₈H₁₈ with 4.000 moles of O₂. 2 C₈H₁₈ + 25 O₂ → 16 CO₂ + 18 H₂O

(Multiple Choice)

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Question 124

Determine the oxidation state of Mn in KMnO₄.

(Short Answer)

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Question 125

Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3 NO₂(g)+ H₂O(l)→ HNO₃(l)+ NO(g) Suppose that 4 mol NO₂ and 2 H₂O mol combine and react completely.How many Moles of NO are produced after the reaction has completed?

(Multiple Choice)

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Question 126

How many grams of H₂ gas can be produced by the reaction of 54.0 grams of Al(s)with an excess of dilute hydrochloric acid in the reaction shown below? 2 Al(s)+ 6 HCl(aq)→ 2 AlCl₃(aq)+ 3 H₂(g)

(Multiple Choice)

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Question 127

Determine the molarity of a solution formed by dissolving 97.7 g LiBr in enough water to yield 750.0 mL of solution.

(Multiple Choice)

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Question 128

List the spectator ions in the following reaction. Ba⁺²(aq)+ 2 OH^-(aq)+ 2 Na ⁺(aq)+ CO₃^-2(aq)→ 2 Na ⁺(aq)+ 2 OH^-(aq)+ BaCO₃₍_s₎

(Short Answer)

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Question 129

What is the concentration of an AlCl₃ solution if 150.mL of the solution contains 450.mg of Cl^- ion?

(Multiple Choice)

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Question 130

How many grams of calcium chloride are needed to produce 1.50 g of potassium chloride? CaCl₂(aq)+ K₂CO₃(aq)→ 2 KCl(aq)+ CaCO₃(aq)

(Multiple Choice)

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Question 131

What is the molarity of a potassium triiodide solution,KI₃(aq),if 30.00 mL of the solution is required to completely react with 25.00 mL of a 0.200 M thiosulfate solution,K₂S₂O₃(aq)? The chemical equation for the reaction is 2 S₂O₃^2-(aq)+ I₃^-(aq)→ S₄O₆^2-(aq)+ 3 I^-(aq).

(Multiple Choice)

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Question 132

What is the oxidation number of the sulfur atom in Li₂SO₄?

(Multiple Choice)

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Question 133

According to the following balanced reaction,how many moles of KO are required to exactly react with 5.44 moles of H₂O? 4 KO(s)+ 2 H₂O(l)→ 4 KOH(s)+ O₂(g)

(Multiple Choice)

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Question 134

How many liters of a 0.0550 M KCl solution contain 0.163 moles of KCl?

(Multiple Choice)

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Question 135

Consider the following reaction.How many moles of oxygen are required to produce 2.33 moles of water? Assume that there is excess C₃H₇SH present. C₃H₇SH(l)+ 6 O₂(g)→ 3 CO₂(g)+ SO₂(g)+ 4 H₂O(g)

(Multiple Choice)

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Question 136

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s)+ N₂(g)→ 2Li₃N(s) In a particular experiment,3.50 g samples of each reagent are reacted.The theoretical yield of lithium nitride is ________ g.

(Multiple Choice)

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Question 137

How many molecules of HCl are formed when 50.0 g of water reacts according to the following balanced reaction? Assume excess ICl₃. 2 ICl₃ + 3 H₂O → ICl + HIO₃ + 5 HCl

(Multiple Choice)

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Question 138

How many molecules of H₂S are required to form 79.0 g of sulfur according to the following reaction? Assume excess SO₂. 2 H₂S(g)+ SO₂(g)→ 3 S(s)+ 2H₂O(l)

(Multiple Choice)

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Question 139

A student dissolved 4.00 g of Co(NO₃)₂ in enough water to make 100.mL of stock solution.He took 4.00 mL of the stock solution and then diluted it with water to give 275.mL of a final solution.How many grams of NO₃^- ion are there in the final solution?

(Multiple Choice)

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Question 140

Showing 121 - 140 of 199

Which substance is the limiting reactant when 2.0 g of sulfur reacts with 3.0 g of oxygen and 4.0 g of sodium hydroxide according to the following chemical equation: 2 S(s)+ 3 O₂(g)+ 4 NaOH(aq)→ 2 Na₂SO₄(aq)+ 2 H₂O(l)

How many H⁺ ions can the acid,H₂SO₄,donate per molecule?

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s)+ H₂O(l)→ Ca(OH)₂(s) 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?

Give the theoretical yield,in grams,of CO₂from the reaction of 4.000 moles of C₈H₁₈ with 4.000 moles of O₂. 2 C₈H₁₈ + 25 O₂ → 16 CO₂ + 18 H₂O

Determine the oxidation state of Mn in KMnO₄.

Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3 NO₂(g)+ H₂O(l)→ HNO₃(l)+ NO(g) Suppose that 4 mol NO₂ and 2 H₂O mol combine and react completely.How many Moles of NO are produced after the reaction has completed?

How many grams of H₂ gas can be produced by the reaction of 54.0 grams of Al(s)with an excess of dilute hydrochloric acid in the reaction shown below? 2 Al(s)+ 6 HCl(aq)→ 2 AlCl₃(aq)+ 3 H₂(g)

Determine the molarity of a solution formed by dissolving 97.7 g LiBr in enough water to yield 750.0 mL of solution.

List the spectator ions in the following reaction. Ba⁺²(aq)+ 2 OH^-(aq)+ 2 Na ⁺(aq)+ CO₃^-2(aq)→ 2 Na ⁺(aq)+ 2 OH^-(aq)+ BaCO₃₍_s₎

What is the concentration of an AlCl₃ solution if 150.mL of the solution contains 450.mg of Cl^- ion?

How many grams of calcium chloride are needed to produce 1.50 g of potassium chloride? CaCl₂(aq)+ K₂CO₃(aq)→ 2 KCl(aq)+ CaCO₃(aq)

What is the molarity of a potassium triiodide solution,KI₃(aq),if 30.00 mL of the solution is required to completely react with 25.00 mL of a 0.200 M thiosulfate solution,K₂S₂O₃(aq)? The chemical equation for the reaction is 2 S₂O₃^2-(aq)+ I₃^-(aq)→ S₄O₆^2-(aq)+ 3 I^-(aq).

What is the oxidation number of the sulfur atom in Li₂SO₄?

According to the following balanced reaction,how many moles of KO are required to exactly react with 5.44 moles of H₂O? 4 KO(s)+ 2 H₂O(l)→ 4 KOH(s)+ O₂(g)

How many liters of a 0.0550 M KCl solution contain 0.163 moles of KCl?

Consider the following reaction.How many moles of oxygen are required to produce 2.33 moles of water? Assume that there is excess C₃H₇SH present. C₃H₇SH(l)+ 6 O₂(g)→ 3 CO₂(g)+ SO₂(g)+ 4 H₂O(g)

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s)+ N₂(g)→ 2Li₃N(s) In a particular experiment,3.50 g samples of each reagent are reacted.The theoretical yield of lithium nitride is ________ g.

How many molecules of HCl are formed when 50.0 g of water reacts according to the following balanced reaction? Assume excess ICl₃. 2 ICl₃ + 3 H₂O → ICl + HIO₃ + 5 HCl

How many molecules of H₂S are required to form 79.0 g of sulfur according to the following reaction? Assume excess SO₂. 2 H₂S(g)+ SO₂(g)→ 3 S(s)+ 2H₂O(l)

A student dissolved 4.00 g of Co(NO₃)₂ in enough water to make 100.mL of stock solution.He took 4.00 mL of the stock solution and then diluted it with water to give 275.mL of a final solution.How many grams of NO₃^- ion are there in the final solution?

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Exam 4: Chemical Quantities and Aqueous Reactions

Which substance is the limiting reactant when 2.0 g of sulfur reacts with 3.0 g of oxygen and 4.0 g of sodium hydroxide according to the following chemical equation: 2 S(s)+ 3 O2(g)+ 4 NaOH(aq)→ 2 Na2SO4(aq)+ 2 H2O(l)

How many H+ ions can the acid,H2SO4,donate per molecule?

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s)+ H2O(l)→ Ca(OH)2(s) 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?

Give the theoretical yield,in grams,of CO2 from the reaction of 4.000 moles of C8H18 with 4.000 moles of O2. 2 C8H18 + 25 O2 → 16 CO2 + 18 H2O

Determine the oxidation state of Mn in KMnO4.

Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3 NO2(g)+ H2O(l)→ HNO3(l)+ NO(g) Suppose that 4 mol NO2 and 2 H2O mol combine and react completely.How many Moles of NO are produced after the reaction has completed?

How many grams of H2 gas can be produced by the reaction of 54.0 grams of Al(s)with an excess of dilute hydrochloric acid in the reaction shown below? 2 Al(s)+ 6 HCl(aq)→ 2 AlCl3(aq)+ 3 H2(g)

Determine the molarity of a solution formed by dissolving 97.7 g LiBr in enough water to yield 750.0 mL of solution.

List the spectator ions in the following reaction. Ba+2(aq)+ 2 OH-(aq)+ 2 Na +(aq)+ CO3-2(aq)→ 2 Na +(aq)+ 2 OH-(aq)+ BaCO3(s)

What is the concentration of an AlCl3 solution if 150.mL of the solution contains 450.mg of Cl- ion?

How many grams of calcium chloride are needed to produce 1.50 g of potassium chloride? CaCl2(aq)+ K2CO3(aq)→ 2 KCl(aq)+ CaCO3(aq)

What is the molarity of a potassium triiodide solution,KI3(aq),if 30.00 mL of the solution is required to completely react with 25.00 mL of a 0.200 M thiosulfate solution,K2S2O3(aq)? The chemical equation for the reaction is 2 S2O32-(aq)+ I3-(aq)→ S4O62-(aq)+ 3 I-(aq).

What is the oxidation number of the sulfur atom in Li2SO4?

According to the following balanced reaction,how many moles of KO are required to exactly react with 5.44 moles of H2O? 4 KO(s)+ 2 H2O(l)→ 4 KOH(s)+ O2(g)

How many liters of a 0.0550 M KCl solution contain 0.163 moles of KCl?

Consider the following reaction.How many moles of oxygen are required to produce 2.33 moles of water? Assume that there is excess C3H7SH present. C3H7SH(l)+ 6 O2(g)→ 3 CO2(g)+ SO2(g)+ 4 H2O(g)

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s)+ N2(g)→ 2Li3N(s) In a particular experiment,3.50 g samples of each reagent are reacted.The theoretical yield of lithium nitride is ________ g.

How many molecules of HCl are formed when 50.0 g of water reacts according to the following balanced reaction? Assume excess ICl3. 2 ICl3 + 3 H2O → ICl + HIO3 + 5 HCl

How many molecules of H2S are required to form 79.0 g of sulfur according to the following reaction? Assume excess SO2. 2 H2S(g)+ SO2(g)→ 3 S(s)+ 2H2O(l)

A student dissolved 4.00 g of Co(NO3)2 in enough water to make 100.mL of stock solution.He took 4.00 mL of the stock solution and then diluted it with water to give 275.mL of a final solution.How many grams of NO3- ion are there in the final solution?

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Thermochemistry

The Quantum-Mechanical Model of the Atom

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Which substance is the limiting reactant when 2.0 g of sulfur reacts with 3.0 g of oxygen and 4.0 g of sodium hydroxide according to the following chemical equation: 2 S(s)+ 3 O₂(g)+ 4 NaOH(aq)→ 2 Na₂SO₄(aq)+ 2 H₂O(l)

How many H⁺ ions can the acid,H₂SO₄,donate per molecule?

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s)+ H₂O(l)→ Ca(OH)₂(s) 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?

Give the theoretical yield,in grams,of CO₂from the reaction of 4.000 moles of C₈H₁₈ with 4.000 moles of O₂. 2 C₈H₁₈ + 25 O₂ → 16 CO₂ + 18 H₂O

Determine the oxidation state of Mn in KMnO₄.

Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3 NO₂(g)+ H₂O(l)→ HNO₃(l)+ NO(g) Suppose that 4 mol NO₂ and 2 H₂O mol combine and react completely.How many Moles of NO are produced after the reaction has completed?

How many grams of H₂ gas can be produced by the reaction of 54.0 grams of Al(s)with an excess of dilute hydrochloric acid in the reaction shown below? 2 Al(s)+ 6 HCl(aq)→ 2 AlCl₃(aq)+ 3 H₂(g)

List the spectator ions in the following reaction. Ba⁺²(aq)+ 2 OH^-(aq)+ 2 Na ⁺(aq)+ CO₃^-2(aq)→ 2 Na ⁺(aq)+ 2 OH^-(aq)+ BaCO₃₍_s₎

What is the concentration of an AlCl₃ solution if 150.mL of the solution contains 450.mg of Cl^- ion?

How many grams of calcium chloride are needed to produce 1.50 g of potassium chloride? CaCl₂(aq)+ K₂CO₃(aq)→ 2 KCl(aq)+ CaCO₃(aq)

What is the molarity of a potassium triiodide solution,KI₃(aq),if 30.00 mL of the solution is required to completely react with 25.00 mL of a 0.200 M thiosulfate solution,K₂S₂O₃(aq)? The chemical equation for the reaction is 2 S₂O₃^2-(aq)+ I₃^-(aq)→ S₄O₆^2-(aq)+ 3 I^-(aq).

What is the oxidation number of the sulfur atom in Li₂SO₄?

According to the following balanced reaction,how many moles of KO are required to exactly react with 5.44 moles of H₂O? 4 KO(s)+ 2 H₂O(l)→ 4 KOH(s)+ O₂(g)

Consider the following reaction.How many moles of oxygen are required to produce 2.33 moles of water? Assume that there is excess C₃H₇SH present. C₃H₇SH(l)+ 6 O₂(g)→ 3 CO₂(g)+ SO₂(g)+ 4 H₂O(g)

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s)+ N₂(g)→ 2Li₃N(s) In a particular experiment,3.50 g samples of each reagent are reacted.The theoretical yield of lithium nitride is ________ g.

How many molecules of HCl are formed when 50.0 g of water reacts according to the following balanced reaction? Assume excess ICl₃. 2 ICl₃ + 3 H₂O → ICl + HIO₃ + 5 HCl

How many molecules of H₂S are required to form 79.0 g of sulfur according to the following reaction? Assume excess SO₂. 2 H₂S(g)+ SO₂(g)→ 3 S(s)+ 2H₂O(l)

A student dissolved 4.00 g of Co(NO₃)₂ in enough water to make 100.mL of stock solution.He took 4.00 mL of the stock solution and then diluted it with water to give 275.mL of a final solution.How many grams of NO₃^- ion are there in the final solution?