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Name ___________________________
Per ______
1. Calculate the percent by mass of 2.92 g LiF dissolved in 123 g water.
2. Calculate the percent by mass of heptane in a solution containing 12.5 g of heptane in 38.6 g of chloroform.
3. What is the percent by volume of 14 mL of acetone in 63 mL water?
4. A solution is made by adding 10.5 mol SrO to 976.2 g of water. What is the percent by mass of SrO in this
solution?
5. What mass of water must be added to 294.4 g FeCl3 to make a 20.90 percent by mass aqueous solution?
6. What is the molarity of the following solutions?
a) 2.0 mol Na2Cr2O7 in 1.9 L of solution
b) 1.56 mol H3PO4 in 417 mL of solution
7. What is the molarity of the following solutions?
a) 0.74 g Ca(OH)2 in 500 mL of solution
b) 5.60 g Li2S in 350 mL solution
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8. How many moles of solute are contained in the following solutions?
a) 12.97 mL 1.50 M NiCl2
b) 187 mL 0.0595 M Zn(OH)2
9. How many grams of solute are contained in the following solutions?
a) 50.9 mL 0.0341 M NaOH
b) 148 mL 1.35 M K2C2O4
10. How many milliliters of 2.00 M NaOH is needed to make 125 mL of 0.75 M NaOH solution?
11. How many milliliters of 0.512 M HCl solution can be made from 48.0 mL of 8.00 M HCl solution?
12. Calculate the molality of the following solutions
a) 19.8 g NaCl in 138.7 g H2O
b) 17.5 g MgCl2 in 638.8 g H2O
Show all work or no credit will be given
Use the space provided or a separate sheet of paper
Name ___________________________
Per ______
1. Calculate the percent by mass of 2.92 g LiF dissolved in 123 g water.
2.32%
2. Calculate the percent by mass of heptane in a solution containing 12.5 g of heptane in 38.6 g of chloroform.
24.5%
3. What is the percent by volume of 14 mL of acetone in 63 mL water?
18%
4. A solution is made by adding 10.5 mol SrO to 976.2 g of water. What is the percent by mass of SrO in this
solution?
52.7%
5. What mass of water must be added to 294.4 g FeCl3 to make a 20.90 percent by mass aqueous solution?
1114 g H2O
6. What is the molarity of the following solutions?
a) 2.0 mol Na2Cr2O7 in 1.9 L of solution
1.1 M Na2Cr2O7
b) 1.56 mol H3PO4 in 417 mL of solution
3.74 M H3PO4
7. What is the molarity of the following solutions?
a) 0.74 g Ca(OH)2 in 500 mL of solution
0.02 M Ca(OH)2
b) 5.60 g Li2S in 350 mL solution
0.35 M Li2S
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Use the space provided or a separate sheet of paper
Name ___________________________
Per ______
8. How many moles of solute are contained in the following solutions?
a) 12.97 mL 1.50 M NiCl2
0.0195 mol NiCl2
b) 187 mL 0.0595 M Zn(OH)2
.0111 mol Zn(OH)2
9. How many grams of solute are contained in the following solutions?
a) 50.9 mL 0.0341 M NaOH
.0694 g NaOH
b) 148 mL 1.35 M K2C2O4
33.2 g K2C2O4
10. How many milliliters of 2.00 M NaOH is needed to make 125 mL of 0.75 M NaOH solution?
47 mL NaOH
11. How many milliliters of 0.512 M HCl solution can be made from 48.0 mL of 8.00 M HCl solution?
750. mL HCl
12. Calculate the molality of the following solutions
a) 19.8 g NaCl in 138.7 g H2O
2.44 m NaCl
b) 17.5 g MgCl2 in 638.8 g H2O
.288 m MgCl2