Question 1

What volume of 18 M sulfuric acid must be used to prepare 2.30 L of 0.145 M H2SO4?

Accepted Answer

A)  19 mL
B)  0.33 mL
C)  1.1  ×	imes×  103 mL
D)  2.9 mL
E)  6.0 mL F) A) and B)
G) A) and E)

Question 2

Which of the following aqueous solutions contains the greatest number of ions?

Accepted Answer

A)  400.0 mL of 0.10 M NaCl
B)  300.0 mL of 0.10 M CaCl2
C)  200.0 mL of 0.10 M FeCl3
D)  200.0 mL of 0.10 M KBr
E)  800.0 mL of 0.10 M sucroseF) B) and C)
G) A) and B)

Question 3

Balance the following equation: C3H5(NO3)3 $\to$ N2 + CO2 + H2O + O2

Accepted Answer

4C₃H₅(NO...

Question 4

A 230.0-mL sample of a 0.275 M solution is left on a hot plate overnight; the following morning the solution is 1.29 M. What volume of solvent has evaporated from the 0.275 M solution?

Accepted Answer

A)   49.0 mL
B)   63.3 mL
C)   181.0 mL
D)   230. mL
E)   279.0 mLF) A) and C)
G) A) and E)

Question 5

You have equal masses of different solutes dissolved in equal volumes of solution.Which of the solutes would make the solution having the highest molar concentration?

Accepted Answer

A)  NaOH
B)  KCl
C)  KOH
D)  LiOH
E)  all the sameF) None of the above
G) A) and E)

Question 6

In the reaction 2Cs(s) + Cl2(g)  →	o→  2CsCl(s) ,Cl2 is

Accepted Answer

A)  the reducing agent
B)  the oxidizing agent
C)  oxidized
D)  the electron donor
E)  two of these F) B) and E)
G) B) and D)

Question 7

In the reaction P4(s) + 10Cl2(g)  →	o→ 4PCl5(s) ,the reducing agent is

Accepted Answer

A)  chlorine
B)  PCl5
C)  phosphorus
D)  Cl-
E)  none of these F) B) and E)
G) None of the above

Question 8

A mixture contained no fluorine compound except methyl fluoroacetate,FCH2COOCH3 (molar mass = 92.07 g/mol) .When chemically treated,all the fluorine was converted to CaF2 (molar mass = 78.08 g/mol) .The mass of CaF2 obtained was 35.8 g.Find the mass of methyl fluoroacetate in the original mixture.

Accepted Answer

A)  60.7 g
B)  84.4 g
C)  30.4 g
D)  42.2 g
E)  21.1 gF) A) and B)
G) B) and E)

Question 9

A reducing agent is an electron donor.

Accepted Answer

A) True 
 B)False

Question 10

Consider an aqueous solution of calcium nitrate added to an aqueous solution of sodium phosphate.What is the formula of the solid formed in the reaction?

Accepted Answer

A)  Ca(PO4) 2
B)  CaPO4
C)  Ca3(PO4) 2
D)  Ca3(PO3) 2
E)  none of theseF) C) and E)
G) All of the above

Question 11

You have 75.0 mL of a 2.50 M solution of Na2CrO4(aq) .You also have 125 mL of a 2.01 M solution of AgNO3(aq) .Calculate the concentration of CrO42- after the two solutions are mixed together.

Accepted Answer

A)  0.00 M
B)  0.309 M
C)  0.938 M
D)  0.251 M
E)  2.50 MF) C) and D)
G) A) and B)

Question 12

In the reaction shown below,what species is oxidized? 
2NaI + Br2  →	o→  2NaBr + I2

Accepted Answer

A)  Na+
B)  I-
C)  Br2
D)  Br-
E)  I2 F) C) and D)
G) All of the above

Question 13

Which of the following compounds is soluble in water?

Accepted Answer

A)  Ni(OH) 2
B)  K3PO4
C)  BaSO4
D)  CoCO3
E)  PbCl2F) B) and C)
G) A) and B)

Question 14

Dissolution of calcium hydroxide with another reagent

Accepted Answer

Ca(OH)₂ +...

Question 15

You mix 275.0 mL of 1.20 M lead(II) nitrate with 300.0 mL of 1.85 M potassium iodide.The lead(II) iodide is insoluble.Which of the following is false?

Accepted Answer

A)  The final concentration of Pb2+ ions is 0.0913 M.
B)  You form 128 g of lead(II) iodide.
C)  The final concentration of K+ is 0.965 M.
D)  The final concentration of NO3- is 0.965 M.
E)  All are true.F) B) and D)
G) B) and C)

Question 16

With what volume of 5.00 M HF will 4.72 g of calcium hydroxide react completely,according to the following reaction?

Accepted Answer

A)  12.7 mL
B)  127 mL
C)  637 mL
D)  25.5 mL
E)  39.2 mLF) A) and C)
G) C) and D)

Question 17

A __________ electrolyte dissociates to a great extent in an aqueous solution.

Accepted Answer

The answer of A __________ electrolyte dissociates to a great...

Question 18

Polar molecules have an unequal distribution of charge within the molecule.

Accepted Answer

A) True 
 B)False

Question 19

A __________ is a substance dissolved in a liquid to make a solution.

Accepted Answer

The answer of A __________ is a substance dissolved in...

Question 20

The filtrate is the solid formed when two solutions are mixed.

Accepted Answer

A) True 
 B)False

Exam 4: Chemical Reactions and Solutions Stoichiometry

Correct Answer
verified

Polar molecules have an unequal distribution of charge within the molecule.

Correct Answer
verified

Dissolution of calcium hydroxide with another reagent

Correct Answer
verified
Ca(OH)₂ +...
View Answer

A 230.0-mL sample of a 0.275 M solution is left on a hot plate overnight; the following morning the solution is 1.29 M. What volume of solvent has evaporated from the 0.275 M solution?

Correct Answer
verified

In the reaction P₄(s) + 10Cl₂(g) $\to$ 4PCl₅(s) ,the reducing agent is

Correct Answer
verified

The filtrate is the solid formed when two solutions are mixed.

Correct Answer
verified

In the reaction shown below,what species is oxidized? 2NaI + Br₂ $\to$ 2NaBr + I₂

Correct Answer
verified

Which of the following aqueous solutions contains the greatest number of ions?

Correct Answer
verified

With what volume of 5.00 M HF will 4.72 g of calcium hydroxide react completely,according to the following reaction?

Correct Answer
verified

You have equal masses of different solutes dissolved in equal volumes of solution.Which of the solutes would make the solution having the highest molar concentration?

Correct Answer
verified

A __________ electrolyte dissociates to a great extent in an aqueous solution.

Correct Answer
verified

In the reaction 2Cs(s) + Cl₂(g) $\to$ 2CsCl(s) ,Cl₂ is

Correct Answer
verified

You have 75.0 mL of a 2.50 M solution of Na₂CrO₄(aq) .You also have 125 mL of a 2.01 M solution of AgNO₃(aq) .Calculate the concentration of CrO₄²^- after the two solutions are mixed together.

Correct Answer
verified

A __________ is a substance dissolved in a liquid to make a solution.

Correct Answer
verified

Which of the following compounds is soluble in water?

Correct Answer
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A reducing agent is an electron donor.

Correct Answer
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Consider an aqueous solution of calcium nitrate added to an aqueous solution of sodium phosphate.What is the formula of the solid formed in the reaction?

Correct Answer
verified

You mix 275.0 mL of 1.20 M lead(II) nitrate with 300.0 mL of 1.85 M potassium iodide.The lead(II) iodide is insoluble.Which of the following is false?

Correct Answer
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Balance the following equation: C₃H₅(NO₃)₃ $\to$ N₂ + CO₂ + H₂O + O₂

Correct Answer
verified
4C₃H₅(NO...
View Answer

What volume of 18 M sulfuric acid must be used to prepare 2.30 L of 0.145 M H₂SO₄?

Correct Answer
verified

Exam 4: Chemical Reactions and Solutions Stoichiometry

A mixture contained no fluorine compound except methyl fluoroacetate,FCH2COOCH3 (molar mass = 92.07 g/mol) .When chemically treated,all the fluorine was converted to CaF2 (molar mass = 78.08 g/mol) .The mass of CaF2 obtained was 35.8 g.Find the mass of methyl fluoroacetate in the original mixture.

Correct AnswerverifiedShow Answer

Polar molecules have an unequal distribution of charge within the molecule.

Correct AnswerverifiedShow Answer

Dissolution of calcium hydroxide with another reagent

Correct AnswerverifiedCa(OH)2 +...View AnswerShow Answer

A 230.0-mL sample of a 0.275 M solution is left on a hot plate overnight; the following morning the solution is 1.29 M. What volume of solvent has evaporated from the 0.275 M solution?

Correct AnswerverifiedShow Answer

In the reaction P4(s) + 10Cl2(g) →\to→ 4PCl5(s) ,the reducing agent is

Correct AnswerverifiedShow Answer

The filtrate is the solid formed when two solutions are mixed.

Correct AnswerverifiedShow Answer

In the reaction shown below,what species is oxidized? 2NaI + Br2 →\to→ 2NaBr + I2

Correct AnswerverifiedShow Answer

Which of the following aqueous solutions contains the greatest number of ions?

Correct AnswerverifiedShow Answer

With what volume of 5.00 M HF will 4.72 g of calcium hydroxide react completely,according to the following reaction?

Correct AnswerverifiedShow Answer

You have equal masses of different solutes dissolved in equal volumes of solution.Which of the solutes would make the solution having the highest molar concentration?

Correct AnswerverifiedShow Answer

A __________ electrolyte dissociates to a great extent in an aqueous solution.

Correct AnswerverifiedShow Answer

In the reaction 2Cs(s) + Cl2(g) →\to→ 2CsCl(s) ,Cl2 is

Correct AnswerverifiedShow Answer

You have 75.0 mL of a 2.50 M solution of Na2CrO4(aq) .You also have 125 mL of a 2.01 M solution of AgNO3(aq) .Calculate the concentration of CrO42- after the two solutions are mixed together.

Correct AnswerverifiedShow Answer

A __________ is a substance dissolved in a liquid to make a solution.

Correct AnswerverifiedShow Answer

Which of the following compounds is soluble in water?

Correct AnswerverifiedShow Answer

A reducing agent is an electron donor.

Correct AnswerverifiedShow Answer

Consider an aqueous solution of calcium nitrate added to an aqueous solution of sodium phosphate.What is the formula of the solid formed in the reaction?

Correct AnswerverifiedShow Answer

You mix 275.0 mL of 1.20 M lead(II) nitrate with 300.0 mL of 1.85 M potassium iodide.The lead(II) iodide is insoluble.Which of the following is false?

Correct AnswerverifiedShow Answer

Balance the following equation: C3H5(NO3)3 →\to→ N2 + CO2 + H2O + O2

Correct Answerverified4C3H5(NO...View AnswerShow Answer

What volume of 18 M sulfuric acid must be used to prepare 2.30 L of 0.145 M H2SO4?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Ca(OH)₂ +...
View Answer

Correct Answer
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In the reaction P₄(s) + 10Cl₂(g) $\to$ 4PCl₅(s) ,the reducing agent is

Correct Answer
verified

Correct Answer
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In the reaction shown below,what species is oxidized? 2NaI + Br₂ $\to$ 2NaBr + I₂

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

In the reaction 2Cs(s) + Cl₂(g) $\to$ 2CsCl(s) ,Cl₂ is

Correct Answer
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You have 75.0 mL of a 2.50 M solution of Na₂CrO₄(aq) .You also have 125 mL of a 2.01 M solution of AgNO₃(aq) .Calculate the concentration of CrO₄²^- after the two solutions are mixed together.

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Balance the following equation: C₃H₅(NO₃)₃ $\to$ N₂ + CO₂ + H₂O + O₂

Correct Answer
verified
4C₃H₅(NO...
View Answer

What volume of 18 M sulfuric acid must be used to prepare 2.30 L of 0.145 M H₂SO₄?

Correct Answer
verified