CHEM 1411 EXAM 2 QUESTIONS AND 100% CORRECT
DETAILED ANSWERS UPDATED 2025/2026 A COMPLETE
SOLUTION BEST RATED A+ FOR SUCCESS
What volume (in mL) of 0.0887 M MgCl2 solution is needed to make 275.0 mL of 0.0600 M
MgCl2 solution? - CORRECT ANSWERS 186.0 mL
Define an Arrhenius acid. - CORRECT ANSWERS produces H+ ions in aqueous solution
What volume of 0.305 M AgNO3 is required to react exactly with 155.0 mL of 0.274 M Na2SO4
solution? Hint: You will want to write a balanced reaction. - CORRECT ANSWERS 278
mL
The titration of 80.0 mL of an unknown concentration H3PO4 solution requires 126 mL of 0.218
M KOH solution. What is the concentration of the H3PO4 solution (in M)? - CORRECT
ANSWERS 0.114 M
What element is undergoing reduction (if any) in the following reaction?
CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g) - CORRECT ANSWERS O
Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of
sodium sulfide and iron(II) nitrate are mixed. - CORRECT ANSWERS S2-(aq) + Fe2+(aq)
→ FeS(s)
What element is undergoing reduction (if any) in the following reaction?
Zn(s) + 2 AgNO3(aq) → Zn(NO3)2(aq) + 2 Ag(s) - CORRECT ANSWERS Ag
Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of K2S
and Fe(NO3)2 are mixed. - CORRECT ANSWERS Fe2+(aq) + S2-(aq) → FeS(s)
, CHEM 1411 EXAM 2 QUESTIONS AND 100% CORRECT
DETAILED ANSWERS UPDATED 2025/2026 A COMPLETE
SOLUTION BEST RATED A+ FOR SUCCESS
The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12
M LiOH solution. What is the concentration of the H2SO4 solution (in M)? - CORRECT
ANSWERS 0.20 M
According to the following reaction, what volume of 0.244 M KCl solution is required to react
exactly with 50.0 mL of 0.210 M Pb(NO3)2 solution?
2 KCl(aq) + Pb(NO3)2(aq) → PbCl2(s) + 2 KNO3(aq) - CORRECT ANSWERS 86.1 mL
Identify the reducing agent.
2 Al3+(aq) + 2 Fe(s) → 2 Al(s) + 3 Fe2+(aq) - CORRECT ANSWERS Fe
How many milliliters of a 0.266 M LiNO3 solution are required to make 150.0 mL of 0.075 M
LiNO3 solution? - CORRECT ANSWERS 42.3 mL
How many grams of NaCl are required to make 250.0 mL of a 3.000 M solution? - CORRECT
ANSWERS 43.83 g
Calculate the number of grams of solute in 500.0 mL of 0.179 M KOH. - CORRECT
ANSWERS 5.02 g
Define an Arrhenius base. - CORRECT ANSWERS produces OH-ions in aqueous solution
Which of the gases in the graph below has the largest molar mass - CORRECT ANSWERS
D
DETAILED ANSWERS UPDATED 2025/2026 A COMPLETE
SOLUTION BEST RATED A+ FOR SUCCESS
What volume (in mL) of 0.0887 M MgCl2 solution is needed to make 275.0 mL of 0.0600 M
MgCl2 solution? - CORRECT ANSWERS 186.0 mL
Define an Arrhenius acid. - CORRECT ANSWERS produces H+ ions in aqueous solution
What volume of 0.305 M AgNO3 is required to react exactly with 155.0 mL of 0.274 M Na2SO4
solution? Hint: You will want to write a balanced reaction. - CORRECT ANSWERS 278
mL
The titration of 80.0 mL of an unknown concentration H3PO4 solution requires 126 mL of 0.218
M KOH solution. What is the concentration of the H3PO4 solution (in M)? - CORRECT
ANSWERS 0.114 M
What element is undergoing reduction (if any) in the following reaction?
CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g) - CORRECT ANSWERS O
Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of
sodium sulfide and iron(II) nitrate are mixed. - CORRECT ANSWERS S2-(aq) + Fe2+(aq)
→ FeS(s)
What element is undergoing reduction (if any) in the following reaction?
Zn(s) + 2 AgNO3(aq) → Zn(NO3)2(aq) + 2 Ag(s) - CORRECT ANSWERS Ag
Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of K2S
and Fe(NO3)2 are mixed. - CORRECT ANSWERS Fe2+(aq) + S2-(aq) → FeS(s)
, CHEM 1411 EXAM 2 QUESTIONS AND 100% CORRECT
DETAILED ANSWERS UPDATED 2025/2026 A COMPLETE
SOLUTION BEST RATED A+ FOR SUCCESS
The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12
M LiOH solution. What is the concentration of the H2SO4 solution (in M)? - CORRECT
ANSWERS 0.20 M
According to the following reaction, what volume of 0.244 M KCl solution is required to react
exactly with 50.0 mL of 0.210 M Pb(NO3)2 solution?
2 KCl(aq) + Pb(NO3)2(aq) → PbCl2(s) + 2 KNO3(aq) - CORRECT ANSWERS 86.1 mL
Identify the reducing agent.
2 Al3+(aq) + 2 Fe(s) → 2 Al(s) + 3 Fe2+(aq) - CORRECT ANSWERS Fe
How many milliliters of a 0.266 M LiNO3 solution are required to make 150.0 mL of 0.075 M
LiNO3 solution? - CORRECT ANSWERS 42.3 mL
How many grams of NaCl are required to make 250.0 mL of a 3.000 M solution? - CORRECT
ANSWERS 43.83 g
Calculate the number of grams of solute in 500.0 mL of 0.179 M KOH. - CORRECT
ANSWERS 5.02 g
Define an Arrhenius base. - CORRECT ANSWERS produces OH-ions in aqueous solution
Which of the gases in the graph below has the largest molar mass - CORRECT ANSWERS
D
