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Topic 7: Solutions
15. Molarity concentration calculation: Calculation of concentration from moles or
mass (g) and volume (L) of solute using equation:
1. What is the molarity of a NaOH solution if 0.5 L of the solution contains 0.5 mole of NaOH?
1) 1.0 M 2) 2.0 M 3) 0.25 M 4) 0.5 M
2. What is the molarity of an H2SO4 solution if 2 liters of the solution contains 4 moles of H2SO4?
4) 80 M
3) 8 M
1) 0.5 M
2) 2 M
3. What is the concentration of a solution of 10.0 moles of copper (II) nitrate dissolved in 5.00 liters of
the solution?
1) 0.50 M 2) 5.00 M 3) 10.0 M 4) 2.00 M
4. A 0.25 liter of potassium chloride solution contains 0.75 mole of KCl. What is the concentration of
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this solution?
1) 0.33 M 2) 0.75 M 3) 3.0 M 4) 6.0 M
5. A solution of NaCl contains 1.8 moles of the solute in 600 ml of solution. What is the concentration of
the solution? 2) 0.003 M 3) 3 M 4) 0. 05 M
1) 333 M
6. What is the molarity of a solution of NH4Cl if 500 ml of the solution contains 1 mole of NH4Cl?
2) 2 M
1) 1 M
4) 6 M
3) 5 M
7. A 250 milliliters of solution that contains 0.25 mole of solute will have a molarity concentration of
3) 0.50 mol/L
1) 1.0 mol/L
2) 0.025 mol/L
4) 0.75 mol/L
8. What is the molarity of a solution that contains 20 grams of CaBr2 in 0.50 liter of solution?
2) 0.20 M
3) 5.0 M
4) 10 M
1) 0.50 M
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9. What is the molarity of a solution that contains 40 grams of NaOH in 0.50 liter of solution?
3) 0.25 M
2) 0.5 M
4) 2.0 M
1) 1.0 M
10. What is the concentration of a solution of KNO3 (molecular mass = 101 g/mole) that contains 50.5 g
of KNO3 in 2.00 liters of solution?
1) 25.25 M 2) 2.00 M 3) 0.500 M 4) 0.25 M
11. What is the concentration of a solution of HNO3 if 1.7 L of the solution contains 31.5 grams of HNO3?
3) 0.05 M
2) 18.5 M
1) 0.29 M
4) 33.2 M
12. A student dissolved 48 grams of (NH4)2CO3 in 2000 ml of water. What will be the molarity of this
solution?
1) 1 M 2) 2 M 3) 0.25 M 4) 0.5 M
13. A student prepared a solution of sodium nitrate by adding 17 grams of the solute to 0.5 L of water.
What is the concentration of this solution?
1) 0.4 M 2) 0.2 M 3) 2 M 4) 4 M
14. Which preparation produces a 2.0 M solution of C6H12O6?
1) 90 grams of C6H12O6 dissolved in 500 mL of solution
2) 90 grams of C6H12O6 dissolved in 1000 mL of solution
3) 180 grams of C6H12O6 dissolved in 500 mL of solution
4) 180 grams of C6H12O6 dissolved in 1000 mL of solution
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 241
Topic 7: Solutions
15. Molarity concentration calculation: Calculation of concentration from moles or
mass (g) and volume (L) of solute using equation:
1. What is the molarity of a NaOH solution if 0.5 L of the solution contains 0.5 mole of NaOH?
1) 1.0 M 2) 2.0 M 3) 0.25 M 4) 0.5 M
2. What is the molarity of an H2SO4 solution if 2 liters of the solution contains 4 moles of H2SO4?
4) 80 M
3) 8 M
1) 0.5 M
2) 2 M
3. What is the concentration of a solution of 10.0 moles of copper (II) nitrate dissolved in 5.00 liters of
the solution?
1) 0.50 M 2) 5.00 M 3) 10.0 M 4) 2.00 M
4. A 0.25 liter of potassium chloride solution contains 0.75 mole of KCl. What is the concentration of
Teacher Preview Copy
this solution?
1) 0.33 M 2) 0.75 M 3) 3.0 M 4) 6.0 M
5. A solution of NaCl contains 1.8 moles of the solute in 600 ml of solution. What is the concentration of
the solution? 2) 0.003 M 3) 3 M 4) 0. 05 M
1) 333 M
6. What is the molarity of a solution of NH4Cl if 500 ml of the solution contains 1 mole of NH4Cl?
2) 2 M
1) 1 M
4) 6 M
3) 5 M
7. A 250 milliliters of solution that contains 0.25 mole of solute will have a molarity concentration of
3) 0.50 mol/L
1) 1.0 mol/L
2) 0.025 mol/L
4) 0.75 mol/L
8. What is the molarity of a solution that contains 20 grams of CaBr2 in 0.50 liter of solution?
2) 0.20 M
3) 5.0 M
4) 10 M
1) 0.50 M
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9. What is the molarity of a solution that contains 40 grams of NaOH in 0.50 liter of solution?
3) 0.25 M
2) 0.5 M
4) 2.0 M
1) 1.0 M
10. What is the concentration of a solution of KNO3 (molecular mass = 101 g/mole) that contains 50.5 g
of KNO3 in 2.00 liters of solution?
1) 25.25 M 2) 2.00 M 3) 0.500 M 4) 0.25 M
11. What is the concentration of a solution of HNO3 if 1.7 L of the solution contains 31.5 grams of HNO3?
3) 0.05 M
2) 18.5 M
1) 0.29 M
4) 33.2 M
12. A student dissolved 48 grams of (NH4)2CO3 in 2000 ml of water. What will be the molarity of this
solution?
1) 1 M 2) 2 M 3) 0.25 M 4) 0.5 M
13. A student prepared a solution of sodium nitrate by adding 17 grams of the solute to 0.5 L of water.
What is the concentration of this solution?
1) 0.4 M 2) 0.2 M 3) 2 M 4) 4 M
14. Which preparation produces a 2.0 M solution of C6H12O6?
1) 90 grams of C6H12O6 dissolved in 500 mL of solution
2) 90 grams of C6H12O6 dissolved in 1000 mL of solution
3) 180 grams of C6H12O6 dissolved in 500 mL of solution
4) 180 grams of C6H12O6 dissolved in 1000 mL of solution
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 241
