Question 1

Molarity is defined as

Accepted Answer

A) moles of solute per liter of solution. 
B) moles of solute per liter of solvent. 
C) moles of solvent per liter of solution. 
D) moles of solvent per liter of solvent. 
A) moles of solute per liter of solution. 
B) moles of solute per liter of solvent. 
C) moles of solvent per liter of solution. 
D) moles of solvent per liter of solvent. A

Question 2

What is the oxidation number of the sulfur atom in Cs2SO3?

Accepted Answer

A) -2 
B) +2 
C) +4 
D) +6 
A) -2 
B) +2 
C) +4 
D) +6 C

Question 3

In a solution prepared by mixing CH3OH with H2O the major species present are

Accepted Answer

A) CH3OH and H2O. 
B) CH3OH,H+,and OH-. 
C) CH3+,OH-,and H2O. 
D) CH3O-,H+,and H2O. 
A) CH3OH and H2O. 
B) CH3OH,H+,and OH-. 
C) CH3+,OH-,and H2O. 
D) CH3O-,H+,and H2O. A

Question 4

What reagent would distinguish between Ag+ and Fe3+?

Accepted Answer

A) NaClO3 
B) NaI 
C) NaNO3 
D) NaOH 
A) NaClO3 
B) NaI 
C) NaNO3 
D) NaOH

Question 5

The oxidation state of chlorine in ClO4- is

Accepted Answer

A) 0 
B) +5 
C) -5 
D) +7 
A) 0 
B) +5 
C) -5 
D) +7

Question 6

Based on the positions in the periodic table of elements A,B,and C,which of the following reactions would you expect to occur?

Accepted Answer

A) A2+ + B → A + B2+ 
B) B2+ + C → B + C2+ 
C) C + A → C2- + A2+ 
D) None of the reactions would be expected to occur. 
A) A2+ + B → A + B2+ 
B) B2+ + C → B + C2+ 
C) C + A → C2- + A2+ 
D) None of the reactions would be expected to occur.

Question 7

What is the oxidation number of the sulfur atom in SO2?

Accepted Answer

A) -2 
B) +2 
C) -4 
D) +4 
A) -2 
B) +2 
C) -4 
D) +4

Question 8

When 125 mL of 0.500 M AgNO3 is added to 100.mL of 0.300 M NH4Cl,how many grams of AgCl are formed? AgNO3(aq)+ NH4Cl(aq)→ AgCl(s)+ NH4NO3(aq)

Accepted Answer

A) 4.30 g 
B) 8.96 g 
C) 13.3 g 
D) 25.8 g 
A) 4.30 g 
B) 8.96 g 
C) 13.3 g 
D) 25.8 g

Question 9

Assume that an aqueous solution of hydroxide ion,OHS1U1P1-S1S1P0,represented by unshaded spheres,is allowed to mix with a solution of an acid,HS1U1B1nS1U1B0A,represented by gray spheres.Three possible outcomes are represented by boxes (a)-(c),where the black spheres represent AS1U1P1nS1S1P0S1U1P1-S1S1P0,the anion of the acid.For clarity HS1U1B12S1U1B0O molecules are not shown.  
-Which outcome corresponds to the reaction: HCN + OH- → H2O + CN-?

Accepted Answer

A) box (a) 
B) box (b) 
C) box (c) 
D) None of these 
A) box (a) 
B) box (b) 
C) box (c) 
D) None of these

Question 10

In an acid-base neutralization reaction 43.74 mL of 0.500 M potassium hydroxide reacts with 50.00 mL of sulfuric acid solution.What is the concentration of the H2SO4 solution?

Accepted Answer

A) 0.219 M 
B) 0.437 M 
C) 0.875 M 
D) 1.14 M 
A) 0.219 M 
B) 0.437 M 
C) 0.875 M 
D) 1.14 M

Question 11

If the reaction of phosphate ion with water is ignored,what is the total concentration of ions in a solution prepared by dissolving 3.00 g of Na3PO4 in enough water to make 350.mL of solution?

Accepted Answer

A) 0.0183 M 
B) 0.209 M 
C) 0.0523 M 
D) 0.323 M 
A) 0.0183 M 
B) 0.209 M 
C) 0.0523 M 
D) 0.323 M

Question 12

The unknown acid H2X can be neutralized completely by NaOH according to the following equation: H2X(aq)+ NaOH(aq)→ Na2X + H2O
To completely neutralize this reaction,250 mL of 0.13 M NaOH were needed.How many moles of H2X were present?

Accepted Answer

A) 0.033 
B) 0.065 
C) 0.016 
D) 3.8 
A) 0.033 
B) 0.065 
C) 0.016 
D) 3.8

Question 13

Write a balanced net ionic equation for the reaction of NiBr2(aq)with (NH4)2S(aq).

Accepted Answer

A) NiBr2(aq)+ (NH4)2S(aq)→ NiS(s)+ 2 NH4Br(aq) 
B) Ni2+(aq)+ 2 Br-(aq)+ 2 NH4+(aq)+ S2-(aq)→ NiS(s)+ 2 NH4+(aq)+ 2 Br-(aq) 
C) Ni2+(aq)+ 2 Br-(aq)+ 2 NH4+(aq)+ S2-(aq)→ NiS(s)+ 2 NH4Br(s) 
D) Ni2+(aq)+ S2-(aq)→ NiS(s) 
A) NiBr2(aq)+ (NH4)2S(aq)→ NiS(s)+ 2 NH4Br(aq) 
B) Ni2+(aq)+ 2 Br-(aq)+ 2 NH4+(aq)+ S2-(aq)→ NiS(s)+ 2 NH4+(aq)+ 2 Br-(aq) 
C) Ni2+(aq)+ 2 Br-(aq)+ 2 NH4+(aq)+ S2-(aq)→ NiS(s)+ 2 NH4Br(s) 
D) Ni2+(aq)+ S2-(aq)→ NiS(s)

Question 14

Which one of the following compounds is soluble in water?

Accepted Answer

A) Cu3(PO4)2 
B) FeS 
C) Hg(NO3)2 
D) SrCO3 
A) Cu3(PO4)2 
B) FeS 
C) Hg(NO3)2 
D) SrCO3

Question 15

How many milliliters of 0.550 M hydriodic acid are needed to react with 5.00 mL of 0.217 M CsOH? HI(aq)+ CsOH(aq)→ CsI(aq)+ H2O(l)

Accepted Answer

A) 0.0789 mL 
B) 0.507 mL 
C) 1.97 mL 
D) 12.6 mL 
A) 0.0789 mL 
B) 0.507 mL 
C) 1.97 mL 
D) 12.6 mL

Question 16

The number of milliliters of 0.250 M HCl required to react with 100.0 mL of 0.450 M NaOH in the reaction shown below is ________.
HCl + NaOH → H2O + NaCl

Accepted Answer

Question 17

What ion is provided when Arrhenius bases dissolve in water?

Accepted Answer

A) H+ 
B) Na+ 
C) Cl- 
D) OH- 
A) H+ 
B) Na+ 
C) Cl- 
D) OH-

Question 18

A hydrocarbon of unknown formula CxHy was submitted to combustion analysis with the following results.What is the empirical formula of the hydrocarbon?

Accepted Answer

A) CH 
B) C2H 
C) C2H4 
D) C4H4 
A) CH 
B) C2H 
C) C2H4 
D) C4H4

Question 19

Metals that do not dissolve in non-oxidizing acids are found at the ________ of the activity series.

Accepted Answer

The answer of Metals that do not dissolve in non-oxidizing...

Question 20

Write a net ionic equation for the neutralization reaction of CH3CO2H(aq)with CsOH(aq).

Accepted Answer

A) CH3CO2H(aq)+ CsOH(aq)→ CH3CO2Cs(aq)+ H2O(l) 
B) CH3CO2-(aq)+ H+(aq)+ Cs+(aq)+ OH-(aq)→ CH3CO2-(aq)+ Cs+ + H2O(l) 
C) CH3CO2H(aq)+ Cs+(aq)+ OH-(aq)→ CH3CO2Cs(s)+ H2O(l) 
D) CH3CO2H(aq)+ OH-(aq)→ CH3CO2-(aq)+ H2O(l) 
A) CH3CO2H(aq)+ CsOH(aq)→ CH3CO2Cs(aq)+ H2O(l) 
B) CH3CO2-(aq)+ H+(aq)+ Cs+(aq)+ OH-(aq)→ CH3CO2-(aq)+ Cs+ + H2O(l) 
C) CH3CO2H(aq)+ Cs+(aq)+ OH-(aq)→ CH3CO2Cs(s)+ H2O(l) 
D) CH3CO2H(aq)+ OH-(aq)→ CH3CO2-(aq)+ H2O(l)

Exam 4: Reactions in Aqueous Solutions

Molarity is defined as

What is the oxidation number of the sulfur atom in Cs2SO3?

In a solution prepared by mixing CH3OH with H2O the major species present are

What reagent would distinguish between Ag+ and Fe3+?

The oxidation state of chlorine in ClO4- is

Based on the positions in the periodic table of elements A,B,and C,which of the following reactions would you expect to occur?

What is the oxidation number of the sulfur atom in SO2?

When 125 mL of 0.500 M AgNO3 is added to 100.mL of 0.300 M NH4Cl,how many grams of AgCl are formed? AgNO3(aq)+ NH4Cl(aq)→ AgCl(s)+ NH4NO3(aq)

In an acid-base neutralization reaction 43.74 mL of 0.500 M potassium hydroxide reacts with 50.00 mL of sulfuric acid solution.What is the concentration of the H2SO4 solution?

If the reaction of phosphate ion with water is ignored,what is the total concentration of ions in a solution prepared by dissolving 3.00 g of Na3PO4 in enough water to make 350.mL of solution?

The unknown acid H2X can be neutralized completely by NaOH according to the following equation: H2X(aq)+ NaOH(aq)→ Na2X + H2O To completely neutralize this reaction,250 mL of 0.13 M NaOH were needed.How many moles of H2X were present?

Write a balanced net ionic equation for the reaction of NiBr2(aq)with (NH4)2S(aq).

Which one of the following compounds is soluble in water?

How many milliliters of 0.550 M hydriodic acid are needed to react with 5.00 mL of 0.217 M CsOH? HI(aq)+ CsOH(aq)→ CsI(aq)+ H2O(l)

The number of milliliters of 0.250 M HCl required to react with 100.0 mL of 0.450 M NaOH in the reaction shown below is ________. HCl + NaOH → H2O + NaCl

What ion is provided when Arrhenius bases dissolve in water?

A hydrocarbon of unknown formula CxHy was submitted to combustion analysis with the following results.What is the empirical formula of the hydrocarbon?

Metals that do not dissolve in non-oxidizing acids are found at the ________ of the activity series.

Write a net ionic equation for the neutralization reaction of CH3CO2H(aq)with CsOH(aq).

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Filters

What is the oxidation number of the sulfur atom in Cs₂SO₃?

In a solution prepared by mixing CH₃OH with H₂O the major species present are

What reagent would distinguish between Ag⁺ and Fe³⁺?

The oxidation state of chlorine in ClO₄^- is

What is the oxidation number of the sulfur atom in SO₂?

When 125 mL of 0.500 M AgNO₃ is added to 100.mL of 0.300 M NH₄Cl,how many grams of AgCl are formed? AgNO₃(aq)+ NH₄Cl(aq)→ AgCl(s)+ NH₄NO₃(aq)

In an acid-base neutralization reaction 43.74 mL of 0.500 M potassium hydroxide reacts with 50.00 mL of sulfuric acid solution.What is the concentration of the H₂SO₄ solution?

If the reaction of phosphate ion with water is ignored,what is the total concentration of ions in a solution prepared by dissolving 3.00 g of Na₃PO₄ in enough water to make 350.mL of solution?

The unknown acid H₂X can be neutralized completely by NaOH according to the following equation: H₂X(aq)+ NaOH(aq)→ Na₂X + H₂O To completely neutralize this reaction,250 mL of 0.13 M NaOH were needed.How many moles of H₂X were present?

Write a balanced net ionic equation for the reaction of NiBr₂(aq)with (NH₄)₂S(aq).

How many milliliters of 0.550 M hydriodic acid are needed to react with 5.00 mL of 0.217 M CsOH? HI(aq)+ CsOH(aq)→ CsI(aq)+ H₂O(l)

The number of milliliters of 0.250 M HCl required to react with 100.0 mL of 0.450 M NaOH in the reaction shown below is ________. HCl + NaOH → H₂O + NaCl

A hydrocarbon of unknown formula C_xH_y was submitted to combustion analysis with the following results.What is the empirical formula of the hydrocarbon?

Write a net ionic equation for the neutralization reaction of CH₃CO₂H(aq)with CsOH(aq).