Which statement correctly describes an aqueous solution?
08/14 Solutions and Aqueous Reactions Online Quiz Questions
Use this free practice quiz with 20 questions to review 08/14 Solutions and Aqueous Reactions, test your knowledge, and prepare for your next test or exam.
Select all statements that correctly distinguish molarity from molality.
- A
Molarity is based on liters of solution.
- B
Molality is based on liters of solution.
- C
Molality is based on kilograms of solvent.
- D
Molarity is based on kilograms of solvent.
A supersaturated solution contains more dissolved solute than normally permitted under the specified conditions.
- A
True
- B
False
What term describes a solute that produces ions in aqueous solution and therefore conducts electricity?
In a solution, the substance present in the greater amount is usually the , while the substance dissolved in it is the .
What is the molarity of a solution containing 0.125 mol of KNO3 in 250.0 mL of solution?
- A
0.125 M
- B
0.250 M
- C
0.500 M
- D
2.00 M
Which changes occur when a solution is diluted by adding solvent? Select all that apply.
- A
The moles of solute increase.
- B
The concentration decreases.
- C
The moles of solute decrease.
- D
The amount of solvent increases.
What volume of 2.00 M stock solution is required to prepare 100.0 mL of 0.250 M solution? Enter the value in mL.
In the reaction between aqueous barium nitrate and sodium sulfate, the unchanged sodium and nitrate ions are . After they are canceled, the resulting equation is the .
True or false: For a strong acid–strong base neutralization written with hydronium, the net ionic equation is \ceH3O+(aq)+OH−(aq)−>2H2O(l).
- A
True
- B
False
Explain how to determine the mass of AgCl formed when 50.0 mL of 0.100 M AgNO3 is mixed with 25.0 mL of 0.150 M NaCl. Your explanation must identify the limiting reactant, show the mole calculation, and justify the final mass using 143.32 g/mol for AgCl.
Which procedure best describes preparing a solution to an accurate final volume in a volumetric flask?
- A
Fill until the bottom of the meniscus reaches the calibration mark, then mix thoroughly.
- B
Fill until the top of the meniscus reaches the calibration mark and leave the flask unmixed.
- C
Add solvent until the flask is nearly full, then estimate the final volume by eye.
- D
Fill above the mark so evaporation will bring the solution to the correct volume.
A solution contains 0.200 mol of solute in 500.0 mL of solution. What is its molarity?
- A
0.100 M
- B
0.400 M
- C
2.50 M
- D
100 M
Which mixture is expected to produce a precipitate according to the common solubility guidelines?
- A
NaNO3(aq) and KCl(aq)
- B
NH4NO3(aq) and NaC2H3O2(aq)
- C
Pb(NO3)2(aq) and KI(aq)
- D
KOH(aq) and NaCl(aq)
During a dilution, the moles of solute remain constant while the solution concentration decreases.
- A
True
- B
False
Which is the net ionic equation for the neutralization of a strong acid by a strong base in aqueous solution?
- A
H3O+(aq) + OH−(aq) → 2H2O(l)
- B
HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)
- C
Na+(aq) + Cl−(aq) → NaCl(s)
- D
H2O(l) → H+(aq) + OH−(aq)
A solution contains the maximum concentration of dissolved solute that can exist at equilibrium under the specified temperature and pressure. How should it be classified?
- A
Unsaturated
- B
Saturated
- C
Supersaturated
- D
Nonelectrolyte
What concentration unit is defined as moles of solute per kilogram of solvent?
A 25.00-mL HCl sample requires 18.60 mL of 0.1000 M NaOH for neutralization. What is the HCl concentration? Enter the value in M.
When 30.0 mL of 0.200 M AgNO3 is mixed with 40.0 mL of 0.100 M NaCl, what mass of AgCl(s) forms? Use 143.32 g/mol for AgCl.
- A
0.286 g
- B
0.429 g
- C
0.573 g
- D
0.860 g