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Topic 7: Solutions
16. Molarity Concentration calculation: Calculating moles or mass (grams) from
molarity (M) and volume (L) of solution
1. How many moles of solute are contained in .2 L of a 1 M solution?
1) 1 2) 0.2 3) 0.25 4) 0.50
2. What is the total number of moles of solute in .250 L of a 2 .0 M solution of NaCl?
1) 1.0 mole 2) 2.0 moles 3) 1.25 moles 4) 0.5 mole
3. How many moles of KNO3 are required to make .50 liter of a 2 molar solution of KNO3?
1) 1.0 2) 2.0 3) 0.50 4) 4.0
4. What is the total number of moles of solute in 2230 ml of 3.0 M NaOH solution
1) 1.5 moles 2) 3.0 moles 3) 6.7 moles 4) 0.743 mole
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5. What is the total number of moles in 500 ml of a 3.0 M solution of potassium iodide solution?
3) 3.0
1) 1.0
4) 3.5
2) 1.5
6. What is the total number of grams of HI (formula mass = 128 grams /mole) in 1 liter of 1.00 M HI
solution?
1) 1.0 gram 2) 0.500 gram 3) 64 grams 4) 128 grams
7. How many grams of ammonium chloride, NH4Cl, are contained in 0.500 L of a 2.0 M solution?
1) 10 g 2) 26.5 g 3) 53.5 g 4) 107 g
8. What is the total number of grams of KCl in .250 liter of .200 molar solution? 4) 37 g
3) 14.9 g
1) 3.7 g
2) 7.46 g
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9. How many grams of H2SO4 are contained in 500 ml of a .2 M solution? 4) 9.8 g
2) 49 g
1) 19.6 g
3) 100 g
10. A 1 M solution contains 20 grams of solute in 500 ml of solution. What is the mass of 1 mole of the
solute? 2) 20 g 3) 40 g 4) 80 g
1) 10 g
17. Molarity concentration calculation: Calculation of volume from
molarity (M) and moles (or mass) of solute
1. How many liters of a 0.5 M sodium hydroxide solution would contain 1 mole of solute?
1) 0.5 L 2) 1.0 L 3) 2.0 L 4) 4.0 L
2. How many liters of 1.5 M Ca(NO3)2 solution would contain .45 mole of the Ca(NO3)2 solute?
1) 0.3 L 2) 0.67 L 3) 1.95 L 4) 243 L
3. How many milliliters of a .1 M KNO3 solution would contain .02 moles of the solute? 4) 200 ml
3) 500 ml
1) 100 ml
2) 1000 ml
4. What is the total volume of a 2.5 molar HCl solution that contains 90 grams of HCl in 1 L of solution?
1) 1 L 2) 2 L 3) 2.5 L 4) 3 L
5. What is the total number of liters of 1 M solution of C6H12O6 that contains 360 grams of the solute?
1) 1 L 2) 2 L 3) 0.5 L 4) 0.25 L
242 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Topic 7: Solutions
16. Molarity Concentration calculation: Calculating moles or mass (grams) from
molarity (M) and volume (L) of solution
1. How many moles of solute are contained in .2 L of a 1 M solution?
1) 1 2) 0.2 3) 0.25 4) 0.50
2. What is the total number of moles of solute in .250 L of a 2 .0 M solution of NaCl?
1) 1.0 mole 2) 2.0 moles 3) 1.25 moles 4) 0.5 mole
3. How many moles of KNO3 are required to make .50 liter of a 2 molar solution of KNO3?
1) 1.0 2) 2.0 3) 0.50 4) 4.0
4. What is the total number of moles of solute in 2230 ml of 3.0 M NaOH solution
1) 1.5 moles 2) 3.0 moles 3) 6.7 moles 4) 0.743 mole
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5. What is the total number of moles in 500 ml of a 3.0 M solution of potassium iodide solution?
3) 3.0
1) 1.0
4) 3.5
2) 1.5
6. What is the total number of grams of HI (formula mass = 128 grams /mole) in 1 liter of 1.00 M HI
solution?
1) 1.0 gram 2) 0.500 gram 3) 64 grams 4) 128 grams
7. How many grams of ammonium chloride, NH4Cl, are contained in 0.500 L of a 2.0 M solution?
1) 10 g 2) 26.5 g 3) 53.5 g 4) 107 g
8. What is the total number of grams of KCl in .250 liter of .200 molar solution? 4) 37 g
3) 14.9 g
1) 3.7 g
2) 7.46 g
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9. How many grams of H2SO4 are contained in 500 ml of a .2 M solution? 4) 9.8 g
2) 49 g
1) 19.6 g
3) 100 g
10. A 1 M solution contains 20 grams of solute in 500 ml of solution. What is the mass of 1 mole of the
solute? 2) 20 g 3) 40 g 4) 80 g
1) 10 g
17. Molarity concentration calculation: Calculation of volume from
molarity (M) and moles (or mass) of solute
1. How many liters of a 0.5 M sodium hydroxide solution would contain 1 mole of solute?
1) 0.5 L 2) 1.0 L 3) 2.0 L 4) 4.0 L
2. How many liters of 1.5 M Ca(NO3)2 solution would contain .45 mole of the Ca(NO3)2 solute?
1) 0.3 L 2) 0.67 L 3) 1.95 L 4) 243 L
3. How many milliliters of a .1 M KNO3 solution would contain .02 moles of the solute? 4) 200 ml
3) 500 ml
1) 100 ml
2) 1000 ml
4. What is the total volume of a 2.5 molar HCl solution that contains 90 grams of HCl in 1 L of solution?
1) 1 L 2) 2 L 3) 2.5 L 4) 3 L
5. What is the total number of liters of 1 M solution of C6H12O6 that contains 360 grams of the solute?
1) 1 L 2) 2 L 3) 0.5 L 4) 0.25 L
242 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
