Name ______________________________________
Period ______
Homework: Calculating Concentration Practice Problems
1. What is concentration a measurement of?
2. What is the parts per billion of a solution with 8,932 g of solute in 100,000 g of
solvent?
3. What is the molarity of a solution with 12 moles of HCl in 8,000 mL of solvent?
4. How many moles of solute are needed to make 2 L of 6 M HCl solution?
5. The EPA (Environmental Protection Agency) currently limits the concentration of
fluoride in drinking water to no more than 0.004 g per liter of water. What is this
concentration in parts-per-million (ppm)?
6. What is the molarity of the solution produced when 85.6 g of hydrochloric acid
(HCl) is dissolved in enough water to prepare 385 mL of solution?
7. The label on an Ocean Spray Cran-Raspberry drink lists 30 g of sugar in 240 mL
of drink. I weighed 240 mL of drink and found its mass to be 251 g. What is the
percent composition of sugar in the drink?
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8. Find the molarity of a solution where 9.07 x 10
dissolved to make 0.5 L of solution.
molecules of CCl4 are