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- 1. Multiple Choice
The term molar, which describes a solution's concentration, is written as?
M
mol
g
g/L
- 2. Multiple Choice
You need to make 200 mL of a 0.20 M aqueous solution of sodium chloride. The only available solution is 1.0 M. Determine how to make the needed dilution.
Add 160 mL to the initial volume
Add 160 grams to the initial volume
Evaporate 160 mL from the initial volume
the experiment cannot be conducted with the materials provided
- 3. Multiple Choice
A dilution is when
solute is added to the volume of stock solution
water is added to the volume of stock solution
solute is removed from the volume of stock solution
water is removed from the volume of stock solution
- 4. Multiple Choice
Calculate the Molarity in a solution containing 40.0 g of NaCl dissolved in 500.0 ml of H2O.
0.08 M
12.5 M
1.37 M
0.74 M
- 5. Multiple Choice
Calculate the grams of NaOH present in 10.0 mL of a 2.0 M NaOH solution.
0.8 grams
2000 grams
0.3 grams
5 grams
- 6. Multiple Choice
Molarity is ...
grams of solute/deciliters of solvent.
grams of solute/liters of solution.
moles of solute/liters of solution.
moles of solute/milliliters of solvent.
- 7. Multiple Choice
A solution is made by dissolving 0.50 mole of NaCl in enough water to give a final volume of 400.0 mL. What is the molarity of the solution?
0.10 M
0.40 M
1.25 M
2.33 M
- 8. Multiple Choice
The definition of a stock solution is ...
a highly concentrated solution that is meant to be diluted to some lower concentration.
moles of solute divided by liters of solvent
a solution used to make soup and is usually either chicken or beef flavor
a solution with less dissolved solute than a dilute solution.
- 9. Multiple Choice
A 0.500 M solution of NaOH, which contains 0.750 mole of solute, would have a volume, in milliliters
0.667 mL
1200 mL
1500 mL
2100 mL
- 10. Multiple Choice
What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300 mL of 2.00 M NaOH by dilution?
0.067 mL
60.0 mL
100 mL
125 mL
- 11. Multiple Choice
If 0.775 L of 1.00 M NaOH is diluted to 1.00 L, the resulting solution contains
0.225 mol NaOH
0.775 mol NaOH
1.25 mol NaOH
2.45 mol NaOH
- 12. Multiple Choice
Calculate the volume of a 5M solution that contains 10 moles of NaOH
0.5 L
1 L
2 L
4 L
- 13. Multiple Choice
What is a concentrated solution?
a solution that has a large amount of solute in a large volume of solvent
a solution that has an equal amount of solute in the same volume of solvent
a solution that has a small amount of solute in a large volume of solvent
a solution that has a large amount of solute in a small volume of solvent
- 14. Multiple Choice
Which of the following solutions has a molarity of 2.0?
0.050 mole of solute in 0.0250 L of solution
2.0 moles of solute in 0.5000 L of solution
3.0 moles of solute in 1.5000 L of solution
none of the above
- 15. Multiple Choice
Calculate the moles in 1500 mL of a 2 M solution of BaI2
1.33 moles
2.25 moles
3.00 moles
3000 moles
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