Determine the limiting reactant (LR)and the mass (in g)of nitrogen that can be formed from 50.0 g N2O4 and 45.0 g N2H4.Some possibly useful molar masses are as follows: N2O4 = 92.02 g/mol,N2H4 = 32.05 g/mol. N2O4(l)+ 2 N2H4(l)→ 3 N2(g)+ 4 H2O(g)

A) LR = N2H4,59.0 g N2 formed B) LR = N2O4,105 g N2 formed C) LR = N2O4,45.7 g N2 formed D) LR = N2H4,13.3 g N2 formed E) No LR,45.0 g N2 formed A) LR = N2H4,59.0 g N2 formed B) LR = N2O4,105 g N2 formed C) LR = N2O4,45.7 g N2 formed D) LR = N2H4,13.3 g N2 formed E) No LR,45.0 g N2 formed

Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements: 2NaN3(s)→ 2Na(s)+ 3N2(g) How many grams of sodium azide are required to produce 33.0 g of nitrogen?

A) 1.77 B) 0.785 C) 76.6 D) 51.1 E) 114.9 A) 1.77 B) 0.785 C) 76.6 D) 51.1 E) 114.9

A FeCl3 solution is 0.175 M.How many mL of a 0.175 M FeCl3 solution are needed to make 450.mL of a solution that is 0.300 M in Cl- ion?

A) 0.771 mL B) 257 mL C) 771 mL D) It is not possible to make a more concentrated solution from a less concentrated solution. A) 0.771 mL B) 257 mL C) 771 mL D) It is not possible to make a more concentrated solution from a less concentrated solution.

What volume (in mL)of 0.0887 M MgF2 solution is needed to make 275.0 mL of 0.0224 M MgF2 solution?

A) 72.3 mL B) 91.8 mL C) 10.9 mL D) 69.4 mL E) 14.4 mL A) 72.3 mL B) 91.8 mL C) 10.9 mL D) 69.4 mL E) 14.4 mL

How many milliliters of 0.200 M FeCl3 are needed to react with an excess of Na2S to produce 1.38 g of Fe2S3 if the percent yield for the reaction is 65.0%? 3 Na2S(aq)+ 2 FeCl3(aq)→ Fe2S3(s)+ 6 NaCl(aq)

A) 25.5 mL B) 43.1 mL C) 51.1 mL D) 102 mL A) 25.5 mL B) 43.1 mL C) 51.1 mL D) 102 mL

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s)+ N2(g)→ 2Li3N(s) How many moles of lithium are needed to produce 0.60 mol of Li3N when the reaction is carried out in the presence of excess nitrogen?

A) 0.30 B) 1.8 C) 0.20 D) 0.40 E) 3.6 A) 0.30 B) 1.8 C) 0.20 D) 0.40 E) 3.6

Match the following. -H2SO4(aq)+ 2 LiOH(aq)→ 2 H2O(l)+ Li2SO4(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

What is the molarity of a NaOH solution if 28.2 mL of a 0.355 M H2SO4 solution is required to neutralize a 25.0-mL sample of the NaOH solution?

A) 0.801 B) 0.315 C) 0.629 D) 125 E) 0.400 A) 0.801 B) 0.315 C) 0.629 D) 125 E) 0.400

Magnesium burns in air with a dazzling brilliance to produce magnesium oxide: 2Mg(s)+ O2(g)→ 2MgO(s) When 4.00 g of magnesium burns,the theoretical yield of magnesium oxide is ________ g.

A) 4.00 B) 6.63 C) 0.165 D) 3.32 E) 13.3 A) 4.00 B) 6.63 C) 0.165 D) 3.32 E) 13.3

Exam 4: Chemical Quantities and Aqueous Reactions

Determine the limiting reactant (LR)and the mass (in g)of nitrogen that can be formed from 50.0 g N₂O₄ and 45.0 g N₂H₄.Some possibly useful molar masses are as follows: N₂O₄ = 92.02 g/mol,N₂H₄ = 32.05 g/mol. N₂O₄(l)+ 2 N₂H₄(l)→ 3 N₂(g)+ 4 H₂O(g)

(Multiple Choice)

4.8/5

(40)

Question 81

Which of the following compounds is an Arrhenius base?

(Multiple Choice)

4.9/5

(34)

Question 82

Which of the following is not a strong electrolyte?

(Multiple Choice)

4.8/5

(39)

Question 83

Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements: 2NaN₃(s)→ 2Na(s)+ 3N₂(g) How many grams of sodium azide are required to produce 33.0 g of nitrogen?

(Multiple Choice)

4.7/5

(39)

Question 84

Which of the following solutions will have the highest concentration of chloride ions?

(Multiple Choice)

4.8/5

(32)

Question 85

What is the oxidation number of the chromium atom in Na₂CrO₄?

(Multiple Choice)

4.7/5

(34)

Question 86

Balance the chemical equation given below,and determine the number of moles of iodine that reacts with 30.0 g of aluminum. Al(s)+ I₂(s)→ Al₂I₆(s)

(Multiple Choice)

4.8/5

(38)

Question 87

How many grams of NaOH (MW = 40.0)are there in 250.0 mL of a 0.275 M NaOH solution?

(Short Answer)

4.9/5

(34)

Question 88

A FeCl₃ solution is 0.175 M.How many mL of a 0.175 M FeCl₃solution are needed to make 450.mL of a solution that is 0.300 M in Cl^- ion?

(Multiple Choice)

4.9/5

(42)

Question 89

Which of the following pairs of aqueous solutions will produce a precipitate when mixed?

(Multiple Choice)

4.8/5

(41)

Question 90

What volume (in mL)of 0.0887 M MgF₂ solution is needed to make 275.0 mL of 0.0224 M MgF₂solution?

(Multiple Choice)

4.9/5

(37)

Question 91

How can you tell if a reaction is an oxidation-reduction reaction?

(Essay)

4.8/5

(34)

Question 92

Which of the following is considered a strong electrolyte?

(Multiple Choice)

4.9/5

(31)

Question 93

How many milliliters of 0.200 M FeCl₃ are needed to react with an excess of Na₂S to produce 1.38 g of Fe₂S₃ if the percent yield for the reaction is 65.0%? 3 Na₂S(aq)+ 2 FeCl₃(aq)→ Fe₂S₃(s)+ 6 NaCl(aq)

(Multiple Choice)

4.9/5

(37)

Question 94

Define a strong electrolyte.

(Short Answer)

4.7/5

(43)

Question 95

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s)+ N₂(g)→ 2Li₃N(s) How many moles of lithium are needed to produce 0.60 mol of Li₃N when the reaction is carried out in the presence of excess nitrogen?

(Multiple Choice)

4.9/5

(39)

Question 96

Match the following. -H₂SO₄(aq)+ 2 LiOH(aq)→ 2 H₂O(l)+ Li₂SO₄(aq)

(Multiple Choice)

4.9/5

(28)

Question 97

What is the molarity of a NaOH solution if 28.2 mL of a 0.355 M H₂SO₄ solution is required to neutralize a 25.0-mL sample of the NaOH solution?

(Multiple Choice)

4.9/5

(45)

Question 98

Which of the following pairs of aqueous solutions will react to produce a precipitate?

(Multiple Choice)

4.8/5

(42)

Question 99

Magnesium burns in air with a dazzling brilliance to produce magnesium oxide: 2Mg(s)+ O₂(g)→ 2MgO(s) When 4.00 g of magnesium burns,the theoretical yield of magnesium oxide is ________ g.

(Multiple Choice)

4.8/5

(45)

Question 100

Showing 81 - 100 of 199

Determine the limiting reactant (LR)and the mass (in g)of nitrogen that can be formed from 50.0 g N₂O₄ and 45.0 g N₂H₄.Some possibly useful molar masses are as follows: N₂O₄ = 92.02 g/mol,N₂H₄ = 32.05 g/mol. N₂O₄(l)+ 2 N₂H₄(l)→ 3 N₂(g)+ 4 H₂O(g)

Which of the following compounds is an Arrhenius base?

Which of the following is not a strong electrolyte?

Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements: 2NaN₃(s)→ 2Na(s)+ 3N₂(g) How many grams of sodium azide are required to produce 33.0 g of nitrogen?

Which of the following solutions will have the highest concentration of chloride ions?

What is the oxidation number of the chromium atom in Na₂CrO₄?

Balance the chemical equation given below,and determine the number of moles of iodine that reacts with 30.0 g of aluminum. Al(s)+ I₂(s)→ Al₂I₆(s)

How many grams of NaOH (MW = 40.0)are there in 250.0 mL of a 0.275 M NaOH solution?

A FeCl₃ solution is 0.175 M.How many mL of a 0.175 M FeCl₃solution are needed to make 450.mL of a solution that is 0.300 M in Cl^- ion?

Which of the following pairs of aqueous solutions will produce a precipitate when mixed?

What volume (in mL)of 0.0887 M MgF₂ solution is needed to make 275.0 mL of 0.0224 M MgF₂solution?

How can you tell if a reaction is an oxidation-reduction reaction?

Which of the following is considered a strong electrolyte?

How many milliliters of 0.200 M FeCl₃ are needed to react with an excess of Na₂S to produce 1.38 g of Fe₂S₃ if the percent yield for the reaction is 65.0%? 3 Na₂S(aq)+ 2 FeCl₃(aq)→ Fe₂S₃(s)+ 6 NaCl(aq)

Define a strong electrolyte.

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s)+ N₂(g)→ 2Li₃N(s) How many moles of lithium are needed to produce 0.60 mol of Li₃N when the reaction is carried out in the presence of excess nitrogen?

Match the following. -H₂SO₄(aq)+ 2 LiOH(aq)→ 2 H₂O(l)+ Li₂SO₄(aq)

What is the molarity of a NaOH solution if 28.2 mL of a 0.355 M H₂SO₄ solution is required to neutralize a 25.0-mL sample of the NaOH solution?

Which of the following pairs of aqueous solutions will react to produce a precipitate?

Magnesium burns in air with a dazzling brilliance to produce magnesium oxide: 2Mg(s)+ O₂(g)→ 2MgO(s) When 4.00 g of magnesium burns,the theoretical yield of magnesium oxide is ________ g.

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 limiting reactant (LR)and the mass (in g)of nitrogen that can be formed from 50.0 g N2O4 and 45.0 g N2H4.Some possibly useful molar masses are as follows: N2O4 = 92.02 g/mol,N2H4 = 32.05 g/mol. N2O4(l)+ 2 N2H4(l)→ 3 N2(g)+ 4 H2O(g)

Which of the following compounds is an Arrhenius base?

Which of the following is not a strong electrolyte?

Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements: 2NaN3(s)→ 2Na(s)+ 3N2(g) How many grams of sodium azide are required to produce 33.0 g of nitrogen?

Which of the following solutions will have the highest concentration of chloride ions?

What is the oxidation number of the chromium atom in Na2CrO4?

Balance the chemical equation given below,and determine the number of moles of iodine that reacts with 30.0 g of aluminum. ____ Al(s)+ ____ I2(s)→ ____ Al2I6(s)

How many grams of NaOH (MW = 40.0)are there in 250.0 mL of a 0.275 M NaOH solution?

A FeCl3 solution is 0.175 M.How many mL of a 0.175 M FeCl3 solution are needed to make 450.mL of a solution that is 0.300 M in Cl- ion?

Which of the following pairs of aqueous solutions will produce a precipitate when mixed?

What volume (in mL)of 0.0887 M MgF2 solution is needed to make 275.0 mL of 0.0224 M MgF2 solution?

How can you tell if a reaction is an oxidation-reduction reaction?

Which of the following is considered a strong electrolyte?

How many milliliters of 0.200 M FeCl3 are needed to react with an excess of Na2S to produce 1.38 g of Fe2S3 if the percent yield for the reaction is 65.0%? 3 Na2S(aq)+ 2 FeCl3(aq)→ Fe2S3(s)+ 6 NaCl(aq)

Define a strong electrolyte.

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s)+ N2(g)→ 2Li3N(s) How many moles of lithium are needed to produce 0.60 mol of Li3N when the reaction is carried out in the presence of excess nitrogen?

Match the following. -H2SO4(aq)+ 2 LiOH(aq)→ 2 H2O(l)+ Li2SO4(aq)

What is the molarity of a NaOH solution if 28.2 mL of a 0.355 M H2SO4 solution is required to neutralize a 25.0-mL sample of the NaOH solution?

Which of the following pairs of aqueous solutions will react to produce a precipitate?

Magnesium burns in air with a dazzling brilliance to produce magnesium oxide: 2Mg(s)+ O2(g)→ 2MgO(s) When 4.00 g of magnesium burns,the theoretical yield of magnesium oxide is ________ g.

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 limiting reactant (LR)and the mass (in g)of nitrogen that can be formed from 50.0 g N₂O₄ and 45.0 g N₂H₄.Some possibly useful molar masses are as follows: N₂O₄ = 92.02 g/mol,N₂H₄ = 32.05 g/mol. N₂O₄(l)+ 2 N₂H₄(l)→ 3 N₂(g)+ 4 H₂O(g)

Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements: 2NaN₃(s)→ 2Na(s)+ 3N₂(g) How many grams of sodium azide are required to produce 33.0 g of nitrogen?

What is the oxidation number of the chromium atom in Na₂CrO₄?

Balance the chemical equation given below,and determine the number of moles of iodine that reacts with 30.0 g of aluminum. Al(s)+ I₂(s)→ Al₂I₆(s)

A FeCl₃ solution is 0.175 M.How many mL of a 0.175 M FeCl₃solution are needed to make 450.mL of a solution that is 0.300 M in Cl^- ion?

What volume (in mL)of 0.0887 M MgF₂ solution is needed to make 275.0 mL of 0.0224 M MgF₂solution?

How many milliliters of 0.200 M FeCl₃ are needed to react with an excess of Na₂S to produce 1.38 g of Fe₂S₃ if the percent yield for the reaction is 65.0%? 3 Na₂S(aq)+ 2 FeCl₃(aq)→ Fe₂S₃(s)+ 6 NaCl(aq)

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s)+ N₂(g)→ 2Li₃N(s) How many moles of lithium are needed to produce 0.60 mol of Li₃N when the reaction is carried out in the presence of excess nitrogen?

Match the following. -H₂SO₄(aq)+ 2 LiOH(aq)→ 2 H₂O(l)+ Li₂SO₄(aq)

What is the molarity of a NaOH solution if 28.2 mL of a 0.355 M H₂SO₄ solution is required to neutralize a 25.0-mL sample of the NaOH solution?

Magnesium burns in air with a dazzling brilliance to produce magnesium oxide: 2Mg(s)+ O₂(g)→ 2MgO(s) When 4.00 g of magnesium burns,the theoretical yield of magnesium oxide is ________ g.