Determine the number of grams H2 formed when 250.0 mL of 0.743 M HCl solution reacts with 3.41 × 1023 atoms of Fe according to the following reaction. 2 HCl(aq)+ Fe(s)→ H2(g)+ FeCl2(aq)

A) 0.374 g B) 1.33 g C) 1.14 g D) 0.187 g E) 1.51 g A) 0.374 g B) 1.33 g C) 1.14 g D) 0.187 g E) 1.51 g

Match the following. -HCl(aq)+ (NH4)2S(aq)→ H2S(g)+ 2NH4Cl(aq)

A) combustion B) acid base C) oxidation reduction D) gas evolution E) precipitation A) combustion B) acid base C) oxidation reduction D) gas evolution E) precipitation

Based on the balanced chemical equation shown below,what volume of 0.250 M K2S2O3(aq),is needed to completely react with 24.88 mL of 0.125 M KI3(aq),according to the chemical equation: 2 S2O32-(aq)+ I3-(aq)→ S4O62-(aq)+ 3 I-(aq).

A) 6.22 mL B) 12.4 mL C) 24.9 mL D) 99.5 mL A) 6.22 mL B) 12.4 mL C) 24.9 mL D) 99.5 mL

Determine the molarity of a solution formed by dissolving 468 mg of MgI2 in enough water to yield 50.0 mL of solution.

A) 0.0297 M B) 0.0337 M C) 0.0936 M D) 0.0107 M E) 0.0651 M A) 0.0297 M B) 0.0337 M C) 0.0936 M D) 0.0107 M E) 0.0651 M

HCl ,HI ,H2SO4,LiCl ,and KI are all classified as

A) acids. B) nonelectrolytes. C) strong electrolytes. D) weak electrolytes. A) acids. B) nonelectrolytes. C) strong electrolytes. D) weak electrolytes.

When 280.mL of 1.50 × 10-4 M hydrochloric acid is added to 135 mL of 1.75 × 10-4 M Mg(OH)2,the resulting solution will be

A) acidic. B) basic C) neutral. D) It is impossible to tell from the information given. A) acidic. B) basic C) neutral. D) It is impossible to tell from the information given.

Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements: 2NaN3(s)→ 2Na(s)+ 3N2(g) How many moles of N2 are produced by the decomposition of 2.88 mol of sodium azide?

A) 1.92 B) 8.64 C) 4.32 D) 0.960 E) 1.44 A) 1.92 B) 8.64 C) 4.32 D) 0.960 E) 1.44

Exam 4: Chemical Quantities and Aqueous Reactions

Determine the number of grams H₂ formed when 250.0 mL of 0.743 M HCl solution reacts with 3.41 × 10²³ atoms of Fe according to the following reaction. 2 HCl(aq)+ Fe(s)→ H₂(g)+ FeCl₂(aq)

(Multiple Choice)

4.9/5

(35)

Question 61

Match the following. -HCl(aq)+ (NH₄)₂S(aq)→ H₂S(g)+ 2NH₄Cl(aq)

(Multiple Choice)

4.9/5

(38)

Question 62

Identify the spectator ions in the following molecular equation. KBr(aq)+ AgNO₃(aq)→ AgBr(s)+ KNO₃(aq)

(Multiple Choice)

4.7/5

(41)

Question 63

There are ________ mol of bromide ions in 0.900 L of a 0.500M solution of AlBr₃.

(Short Answer)

4.8/5

(43)

Question 64

Based on the balanced chemical equation shown below,what volume of 0.250 M K₂S₂O₃(aq),is needed to completely react with 24.88 mL of 0.125 M KI₃(aq),according to the chemical equation: 2 S₂O₃^2-(aq)+ I₃^-(aq)→ S₄O₆^2-(aq)+ 3 I^-(aq).

(Multiple Choice)

4.9/5

(41)

Question 65

A student prepared a stock solution by dissolving 10.0 g of KOH in enough water to make 150.mL of solution.She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution.What is the concentration of KOH for the final solution?

(Multiple Choice)

4.8/5

(42)

Question 66

How many milliliters of 0.550 M hydriodic acid are needed to react with 15.00 mL of 0.217 M CsOH? HI(aq)+ CsOH(aq)→ CsI(aq)+ H₂O(l)

(Multiple Choice)

4.8/5

(40)

Question 67

Which of the following is an oxidation-reduction reaction?

(Multiple Choice)

4.8/5

(34)

Question 68

1.06g of Na₂CO₃ is dissolved in 100mL of water.What is the molarity of Na⁺ions in the solution?

(Multiple Choice)

4.9/5

(31)

Question 69

What is the oxidation number of the oxygen atom in Rb₂O₂?

(Multiple Choice)

4.8/5

(41)

Question 70

Give the net ionic equation for the reaction (if any)that occurs when aqueous solutions of K₂S and Fe(NO₃)₂ are mixed.

(Multiple Choice)

4.8/5

(34)

Question 71

Which one of the following compounds is insoluble in water?

(Multiple Choice)

4.7/5

(33)

Question 72

When silver nitrate reacts with barium chloride,silver chloride and barium nitrate are formed.How many grams of silver chloride are formed when 10.0 g of silver nitrate reacts with 15.0 g of barium chloride?

(Multiple Choice)

4.9/5

(37)

Question 73

Determine the molarity of a solution formed by dissolving 468 mg of MgI₂ in enough water to yield 50.0 mL of solution.

(Multiple Choice)

4.8/5

(41)

Question 74

HCl,HI,H₂SO₄,LiCl,and KIare all classified as

(Multiple Choice)

4.9/5

(36)

Question 75

When 280.mL of 1.50 × 10^-4M hydrochloric acid is added to 135 mL of 1.75 × 10^-4 M Mg(OH)₂,the resulting solution will be

(Multiple Choice)

4.9/5

(37)

Question 76

What are the spectator ions for the following reaction in aqueous solution: AgNO₃(aq)+ NaCl(aq)→ AgCl(s)+ NaNO₃(aq)

(Multiple Choice)

4.8/5

(36)

Question 77

What causes a precipitation reaction to occur between two soluble compounds?

(Essay)

4.8/5

(40)

Question 78

Which pair of compounds is soluble in water?

(Multiple Choice)

4.9/5

(42)

Question 79

Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements: 2NaN₃(s)→ 2Na(s)+ 3N₂(g) How many moles of N₂ are produced by the decomposition of 2.88 mol of sodium azide?

(Multiple Choice)

4.9/5

(44)

Question 80

Showing 61 - 80 of 199

Determine the number of grams H₂ formed when 250.0 mL of 0.743 M HCl solution reacts with 3.41 × 10²³ atoms of Fe according to the following reaction. 2 HCl(aq)+ Fe(s)→ H₂(g)+ FeCl₂(aq)

Match the following. -HCl(aq)+ (NH₄)₂S(aq)→ H₂S(g)+ 2NH₄Cl(aq)

Identify the spectator ions in the following molecular equation. KBr(aq)+ AgNO₃(aq)→ AgBr(s)+ KNO₃(aq)

There are ________ mol of bromide ions in 0.900 L of a 0.500M solution of AlBr₃.

Based on the balanced chemical equation shown below,what volume of 0.250 M K₂S₂O₃(aq),is needed to completely react with 24.88 mL of 0.125 M KI₃(aq),according to the chemical equation: 2 S₂O₃^2-(aq)+ I₃^-(aq)→ S₄O₆^2-(aq)+ 3 I^-(aq).

A student prepared a stock solution by dissolving 10.0 g of KOH in enough water to make 150.mL of solution.She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution.What is the concentration of KOH for the final solution?

How many milliliters of 0.550 M hydriodic acid are needed to react with 15.00 mL of 0.217 M CsOH? HI(aq)+ CsOH(aq)→ CsI(aq)+ H₂O(l)

Which of the following is an oxidation-reduction reaction?

1.06g of Na₂CO₃ is dissolved in 100mL of water.What is the molarity of Na⁺ions in the solution?

What is the oxidation number of the oxygen atom in Rb₂O₂?

Give the net ionic equation for the reaction (if any)that occurs when aqueous solutions of K₂S and Fe(NO₃)₂ are mixed.

Which one of the following compounds is insoluble in water?

When silver nitrate reacts with barium chloride,silver chloride and barium nitrate are formed.How many grams of silver chloride are formed when 10.0 g of silver nitrate reacts with 15.0 g of barium chloride?

Determine the molarity of a solution formed by dissolving 468 mg of MgI₂ in enough water to yield 50.0 mL of solution.

HCl,HI,H₂SO₄,LiCl,and KIare all classified as

When 280.mL of 1.50 × 10^-4M hydrochloric acid is added to 135 mL of 1.75 × 10^-4 M Mg(OH)₂,the resulting solution will be

What are the spectator ions for the following reaction in aqueous solution: AgNO₃(aq)+ NaCl(aq)→ AgCl(s)+ NaNO₃(aq)

What causes a precipitation reaction to occur between two soluble compounds?

Which pair of compounds is soluble in water?

Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements: 2NaN₃(s)→ 2Na(s)+ 3N₂(g) How many moles of N₂ are produced by the decomposition of 2.88 mol of sodium azide?

Matter, Measurement, and Problem Solving

Atoms and Elements

Molecules, Compounds and Chemical Equations

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Exam 4: Chemical Quantities and Aqueous Reactions

Determine the number of grams H2 formed when 250.0 mL of 0.743 M HCl solution reacts with 3.41 × 1023 atoms of Fe according to the following reaction. 2 HCl(aq)+ Fe(s)→ H2(g)+ FeCl2(aq)

Match the following. -HCl(aq)+ (NH4)2S(aq)→ H2S(g)+ 2NH4Cl(aq)

Identify the spectator ions in the following molecular equation. KBr(aq)+ AgNO3(aq)→ AgBr(s)+ KNO3(aq)

There are ________ mol of bromide ions in 0.900 L of a 0.500M solution of AlBr3.

Based on the balanced chemical equation shown below,what volume of 0.250 M K2S2O3(aq),is needed to completely react with 24.88 mL of 0.125 M KI3(aq),according to the chemical equation: 2 S2O32-(aq)+ I3-(aq)→ S4O62-(aq)+ 3 I-(aq).

A student prepared a stock solution by dissolving 10.0 g of KOH in enough water to make 150.mL of solution.She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution.What is the concentration of KOH for the final solution?

How many milliliters of 0.550 M hydriodic acid are needed to react with 15.00 mL of 0.217 M CsOH? HI(aq)+ CsOH(aq)→ CsI(aq)+ H2O(l)

Which of the following is an oxidation-reduction reaction?

1.06g of Na2CO3 is dissolved in 100mL of water.What is the molarity of Na+ ions in the solution?

What is the oxidation number of the oxygen atom in Rb2O2?

Give the net ionic equation for the reaction (if any)that occurs when aqueous solutions of K2S and Fe(NO3)2 are mixed.

Which one of the following compounds is insoluble in water?

When silver nitrate reacts with barium chloride,silver chloride and barium nitrate are formed.How many grams of silver chloride are formed when 10.0 g of silver nitrate reacts with 15.0 g of barium chloride?

Determine the molarity of a solution formed by dissolving 468 mg of MgI2 in enough water to yield 50.0 mL of solution.

HCl ,HI ,H2SO4,LiCl ,and KI are all classified as

When 280.mL of 1.50 × 10-4 M hydrochloric acid is added to 135 mL of 1.75 × 10-4 M Mg(OH)2,the resulting solution will be

What are the spectator ions for the following reaction in aqueous solution: AgNO3(aq)+ NaCl(aq)→ AgCl(s)+ NaNO3(aq)

What causes a precipitation reaction to occur between two soluble compounds?

Which pair of compounds is soluble in water?

Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements: 2NaN3(s)→ 2Na(s)+ 3N2(g) How many moles of N2 are produced by the decomposition of 2.88 mol of sodium azide?

Matter, Measurement, and Problem Solving

Atoms and Elements

Molecules, Compounds and Chemical Equations

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Determine the number of grams H₂ formed when 250.0 mL of 0.743 M HCl solution reacts with 3.41 × 10²³ atoms of Fe according to the following reaction. 2 HCl(aq)+ Fe(s)→ H₂(g)+ FeCl₂(aq)

Match the following. -HCl(aq)+ (NH₄)₂S(aq)→ H₂S(g)+ 2NH₄Cl(aq)

Identify the spectator ions in the following molecular equation. KBr(aq)+ AgNO₃(aq)→ AgBr(s)+ KNO₃(aq)

There are ________ mol of bromide ions in 0.900 L of a 0.500M solution of AlBr₃.

Based on the balanced chemical equation shown below,what volume of 0.250 M K₂S₂O₃(aq),is needed to completely react with 24.88 mL of 0.125 M KI₃(aq),according to the chemical equation: 2 S₂O₃^2-(aq)+ I₃^-(aq)→ S₄O₆^2-(aq)+ 3 I^-(aq).

How many milliliters of 0.550 M hydriodic acid are needed to react with 15.00 mL of 0.217 M CsOH? HI(aq)+ CsOH(aq)→ CsI(aq)+ H₂O(l)

1.06g of Na₂CO₃ is dissolved in 100mL of water.What is the molarity of Na⁺ions in the solution?

What is the oxidation number of the oxygen atom in Rb₂O₂?

Give the net ionic equation for the reaction (if any)that occurs when aqueous solutions of K₂S and Fe(NO₃)₂ are mixed.

Determine the molarity of a solution formed by dissolving 468 mg of MgI₂ in enough water to yield 50.0 mL of solution.

HCl,HI,H₂SO₄,LiCl,and KIare all classified as

When 280.mL of 1.50 × 10^-4M hydrochloric acid is added to 135 mL of 1.75 × 10^-4 M Mg(OH)₂,the resulting solution will be

What are the spectator ions for the following reaction in aqueous solution: AgNO₃(aq)+ NaCl(aq)→ AgCl(s)+ NaNO₃(aq)

Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements: 2NaN₃(s)→ 2Na(s)+ 3N₂(g) How many moles of N₂ are produced by the decomposition of 2.88 mol of sodium azide?