Question 1

What reagent could be used to separate I- from CH3CO2- when added to an aqueous solution containing both?

Accepted Answer

A) AgNO3 (aq) 
B) Ba(OH)2 (aq) 
C) CuSO4 (aq) 
D) NaI (aq) 
A) AgNO3 (aq) 
B) Ba(OH)2 (aq) 
C) CuSO4 (aq) 
D) NaI (aq)

Question 2

The following pictures represent aqueous solutions of three acids HA (A = X,Y,or Z),with water molecules omitted for clarity.Unshaded spheres represent hydrogen atoms or ions and gray spheres represent A atoms or ions.Which of the three is the strongest acid,and which is the weakest?

Accepted Answer

A) HX is the strongest acid and HY is the weakest acid. 
B) HY is the strongest acid and HX is the weakest acid. 
C) HY is the strongest acid and HZ is the weakest acid. 
D) HZ is the strongest acid and HY is the weakest acid. 
A) HX is the strongest acid and HY is the weakest acid. 
B) HY is the strongest acid and HX is the weakest acid. 
C) HY is the strongest acid and HZ is the weakest acid. 
D) HZ is the strongest acid and HY is the weakest acid.

Question 3

Using the following sequence of reactions,determine the order of reducing agents (strongest to weakest). A + B+ → A+ + B
A + C+ → A+ + C
B + C+ → no reaction

Accepted Answer

A) A > B > C 
B) A > C > B 
C) B > C > A 
D) C+ > B+ > A+ 
A) A > B > C 
B) A > C > B 
C) B > C > A 
D) C+ > B+ > A+

Question 4

The substance is undergoing oxidation in the reaction below is ________.
2 S2O32-(aq)+ I3-(aq)→ S4O62-(aq)+ 3 I-(aq)

Accepted Answer

Question 5

What is the molarity of a solution prepared by dissolving 0.80 g of NaOH in enough water to make 250 mL of solution?

Accepted Answer

The answer of What is the molarity of a solution...

Question 6

What is the concentration of an AlCl3 solution if 150.mL of the solution contains 250.mg of Cl- ion?

Accepted Answer

A) 1.57 × 10-2 M 
B) 3.75 × 10-2 M 
C) 4.70 × 10-2 M 
D) 1.41 × 10-1 M 
A) 1.57 × 10-2 M 
B) 3.75 × 10-2 M 
C) 4.70 × 10-2 M 
D) 1.41 × 10-1 M

Question 7

What is the molarity of chloride ions when 10.4 grams of MgCl2 is dissolved in 753 mL of water?

Accepted Answer

A) 0.00 M 
B) 0.145 M 
C) 0.000290 M 
D) 0.290 M3 
A) 0.00 M 
B) 0.145 M 
C) 0.000290 M 
D) 0.290 M3

Question 8

When 50.0 mL of a 1.00 M solution of Fe(NO3)3 are mixed with 50.0 mL of a 1.00 M solution of NaOH,a precipitate forms.How many moles of precipitate is formed? Fe(NO3)3(aq) + 3 NaOH(aq)→ Fe(OH)3(s)+ 3 NaNO3(aq)

Accepted Answer

A) 0.33 moles 
B) 1.00 mole 
C) 0.05 moles 
D) 0.017 moles 
A) 0.33 moles 
B) 1.00 mole 
C) 0.05 moles 
D) 0.017 moles

Question 9

In the following reaction,Cl2 is 2 Rb(s)+ Cl2(g)→ 2 RbCl(s)

Accepted Answer

A) the reducing agent. 
B) the oxidizing agent. 
C) oxidized. 
D) the electron donor. 
A) the reducing agent. 
B) the oxidizing agent. 
C) oxidized. 
D) the electron donor.

Question 10

The number of milliliters of 12.0 M HCl required to prepare 250 mL of 0.500 M HCl is ________.

Accepted Answer

The answer of The number of milliliters of 12.0 M...

Question 11

What is the concentration of HNO3 in the final solution when 70.0 mL of a 6.00 M HNO3 solution is diluted with pure water to a total volume of 0.15 L?

Accepted Answer

A) 3.57 × 10-2 M 
B) 2.80 M 
C) 12.6 M 
D) 1.75 M 
A) 3.57 × 10-2 M 
B) 2.80 M 
C) 12.6 M 
D) 1.75 M

Question 12

When K2SO4(aq)and Pb(NO3)2(aq)are mixed,a white colored precipitate forms which is

Accepted Answer

A) KNO3. 
B) K2SO3. 
C) Pb. 
D) PbSO4. 
A) KNO3. 
B) K2SO3. 
C) Pb. 
D) PbSO4.

Question 13

The mixing of which pair of reactants will result in a precipitation reaction?

Accepted Answer

A) Cu(NO3)2(aq)+ Na3PO4(aq) 
B) Na2SO4(aq)+ KNO3(aq) 
C) LiClO4(aq)+ (NH4)2S(aq) 
D) NH4Br(aq)+ LiI(aq) 
A) Cu(NO3)2(aq)+ Na3PO4(aq) 
B) Na2SO4(aq)+ KNO3(aq) 
C) LiClO4(aq)+ (NH4)2S(aq) 
D) NH4Br(aq)+ LiI(aq)

Question 14

In the reaction AgNO3(aq)+ HI(aq)→ AgI(s)+ HNO3(aq)the spectator ions are

Accepted Answer

A) Ag+ and NO3-. 
B) Ag+ and I-. 
C) H+ and I-. 
D) H+ and NO3-. 
A) Ag+ and NO3-. 
B) Ag+ and I-. 
C) H+ and I-. 
D) H+ and NO3-.

Question 15

When NaOH(aq)is mixed with CuSO4(aq)a precipitate forms.Based on solubility guidelines the formula of the precipitate is ________.

Accepted Answer

Question 16

Which of the following compounds is an Arrhenius base?

Accepted Answer

A) C6H12O6 
B) HOCl 
C) H2SO4 
D) CH3NH2   
A) C6H12O6 
B) HOCl 
C) H2SO4 
D) CH3NH2

Question 17

How many H+ ions can the acid H3PO4 donate per molecule?

Accepted Answer

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

Question 18

How many H+ ions can the acid,H2CO3,donate per molecule?

Accepted Answer

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

Question 19

Write a net ionic equation for the neutralization reaction of HCN(aq)with NaOH(aq).

Accepted Answer

A) HCN(aq)+ NaOH(aq)→ NaCN(aq)+ H2O(l) 
B) HCN(aq)+ Na+(aq)+ OH-(aq)→ Na+(aq)+ CN-(aq)+ H2O(l) 
C) HCN(aq)+ OH-(aq)→ CN-(aq)+ H2O(l) 
D) H+(aq)+ OH-(aq)→ H2O(l) 
A) HCN(aq)+ NaOH(aq)→ NaCN(aq)+ H2O(l) 
B) HCN(aq)+ Na+(aq)+ OH-(aq)→ Na+(aq)+ CN-(aq)+ H2O(l) 
C) HCN(aq)+ OH-(aq)→ CN-(aq)+ H2O(l) 
D) H+(aq)+ OH-(aq)→ H2O(l)

Question 20

The mixing of which pair of reactants will result in a precipitation reaction?

Accepted Answer

A) CsI(aq)+ NaOH(aq) 
B) HCl(aq)+ Ca(OH)2(aq) 
C) K2SO4(aq)+ Pb (NO3)2(aq) 
D) NaNO3(aq)+ NH4Cl(aq) 
A) CsI(aq)+ NaOH(aq) 
B) HCl(aq)+ Ca(OH)2(aq) 
C) K2SO4(aq)+ Pb (NO3)2(aq) 
D) NaNO3(aq)+ NH4Cl(aq)

Exam 4: Reactions in Aqueous Solutions

What reagent could be used to separate I- from CH3CO2- when added to an aqueous solution containing both?

The following pictures represent aqueous solutions of three acids HA (A = X,Y,or Z),with water molecules omitted for clarity.Unshaded spheres represent hydrogen atoms or ions and gray spheres represent A atoms or ions.Which of the three is the strongest acid,and which is the weakest?

Using the following sequence of reactions,determine the order of reducing agents (strongest to weakest). A + B+ → A+ + B A + C+ → A+ + C B + C+ → no reaction

The substance is undergoing oxidation in the reaction below is ________. 2 S2O32-(aq)+ I3-(aq)→ S4O62-(aq)+ 3 I-(aq)

What is the molarity of a solution prepared by dissolving 0.80 g of NaOH in enough water to make 250 mL of solution?

What is the concentration of an AlCl3 solution if 150.mL of the solution contains 250.mg of Cl- ion?

What is the molarity of chloride ions when 10.4 grams of MgCl2 is dissolved in 753 mL of water?

When 50.0 mL of a 1.00 M solution of Fe(NO3)3 are mixed with 50.0 mL of a 1.00 M solution of NaOH,a precipitate forms.How many moles of precipitate is formed? Fe(NO3)3(aq) + 3 NaOH(aq)→ Fe(OH)3(s)+ 3 NaNO3(aq)

In the following reaction,Cl2 is 2 Rb(s)+ Cl2(g)→ 2 RbCl(s)

The number of milliliters of 12.0 M HCl required to prepare 250 mL of 0.500 M HCl is ________.

What is the concentration of HNO3 in the final solution when 70.0 mL of a 6.00 M HNO3 solution is diluted with pure water to a total volume of 0.15 L?

When K2SO4(aq)and Pb(NO3)2(aq)are mixed,a white colored precipitate forms which is

The mixing of which pair of reactants will result in a precipitation reaction?

In the reaction AgNO3(aq)+ HI(aq)→ AgI(s)+ HNO3(aq)the spectator ions are

When NaOH(aq)is mixed with CuSO4(aq)a precipitate forms.Based on solubility guidelines the formula of the precipitate is ________.

Which of the following compounds is an Arrhenius base?

How many H+ ions can the acid H3PO4 donate per molecule?

How many H+ ions can the acid,H2CO3,donate per molecule?

Write a net ionic equation for the neutralization reaction of HCN(aq)with NaOH(aq).

The mixing of which pair of reactants will result in a precipitation reaction?

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What reagent could be used to separate I^- from CH₃CO₂^-when added to an aqueous solution containing both?

Using the following sequence of reactions,determine the order of reducing agents (strongest to weakest). A + B⁺ → A⁺ + B A + C⁺ → A⁺ + C B + C⁺ → no reaction

The substance is undergoing oxidation in the reaction below is ________. 2 S₂O₃^2-(aq)+ I₃^-(aq)→ S₄O₆^2-(aq)+ 3 I^-(aq)

What is the concentration of an AlCl₃ solution if 150.mL of the solution contains 250.mg of Cl^- ion?

What is the molarity of chloride ions when 10.4 grams of MgCl₂ is dissolved in 753 mL of water?

When 50.0 mL of a 1.00 M solution of Fe(NO₃)₃ are mixed with 50.0 mL of a 1.00 M solution of NaOH,a precipitate forms.How many moles of precipitate is formed? Fe(NO₃)₃(aq)+ 3 NaOH(aq)→ Fe(OH)₃(s)+ 3 NaNO₃(aq)

In the following reaction,Cl₂ is 2 Rb(s)+ Cl₂(g)→ 2 RbCl(s)

What is the concentration of HNO₃ in the final solution when 70.0 mL of a 6.00 M HNO₃ solution is diluted with pure water to a total volume of 0.15 L?

When K₂SO₄(aq)and Pb(NO₃)₂(aq)are mixed,a white colored precipitate forms which is

In the reaction AgNO₃(aq)+ HI(aq)→ AgI(s)+ HNO₃(aq)the spectator ions are

When NaOH(aq)is mixed with CuSO₄(aq)a precipitate forms.Based on solubility guidelines the formula of the precipitate is ________.

How many H⁺ ions can the acid H₃PO₄ donate per molecule?

How many H⁺ ions can the acid,H₂CO₃,donate per molecule?