Name ________________
Molarity Calculations
Date:_________________
1. Which phrase describes the molarity of a solution?
1) liters of solute per mole of solution
2) liters of solution per mole of solution
2. The molarity
3) moles of solute per liter of solution
4) moles of solution per liter of solution
of a solution is equal to the
1)
2)
3)
4)
3. A 3.0 M HCl(aq) solution contains a total of
1) 3.0 grams of HCl per liter of water
2) 3.0 grams of HCl per mole of solution
3) 3.0 moles of HCl per liter of solution
4) 3.0 moles of HCl per mole of water
4. What is the total number of moles of NaCl(s) needed to make 3.0 liters of a 2.0 M NaCl solution?
1) 6.0 mol
2) 8.0 mol
3) 1.0 mol
4) 0.70 mol
5. How many moles of KNO3 are required to make 0.50 liter of a 2.0 M solution of KNO3?
1) 1.0
2) 2.0
3) 0.50
4) 4.0
6. What is the molarity of an H 2SO 4 solution if 0.25 liter of the solution contains 0.75 mole of H 2SO 4?
1) 0.33 M
2) 0.75 M
3) 3.0 M
4) 6.0 M
7. How many moles of solute would 3 liters of a 2-molar solution contain?
1) 1
2) 2
3) 3
4) 6
8. How many moles of solute are contained in 200 milliliters of a 1 M solution?
1) 1
2) 0.2
3) 0.8
4) 200
9. What is the total number of moles of solute in 250 milliliters of a 1.0 M solution of NaCl?
1) 1.0 mole
2) 0.25 mole
3) 0.50 mole
4) 42 moles
10. What is the molarity of a solution that contains 0.25 mole of solute in 250 milliliters of solution?
1) 1.0 M
2) 0.025 M
3) 0.50 M
4) 0.75 M
11. What is the molarity of a solution that contains 20. grams of CaBr 2 in 0.50 liter of solution?
1) 0.50 M
2) 0.20 M
3) 5.0 M
4) 10. M
12. What is the molarity of a solution that contains 30. grams of NaOH in 500. milliliters of solution?
1) 0.75 M
2) 1.3 M
3) 1.5 M
Chemistry!
4) 2.6 M
Answer Key
Solution Concentration
1.
3
2.
4
3.
3
4.
1
5.
1
6.
3
7.
4
8.
2
9.
2
10.
1
11.
2
12.
3
Chemistry!