Part 1: A solution of sulfuric acid was made by dissolving 20.0g of 98% sulfuric acid in 250mL of water. (H2SO4 = 98.078 g/mol; H2O = 18.015 g/mol) Answer these items 1-4 for part 1: 1. Express the concentration of this solution in % by weight. Additional information for items 2-3: What if the solution has a total volume of 262mL? 2. Express the concentration in molarity 3. Express the concentration in normality
Part 1: A solution of sulfuric acid was made by dissolving 20.0g of 98% sulfuric acid in 250mL of water. (H2SO4 = 98.078 g/mol; H2O = 18.015 g/mol)
Answer these items 1-4 for part 1:
1. Express the concentration of this solution in % by weight.
Additional information for items 2-3: What if the solution has a total volume of 262mL?
2. Express the concentration in molarity
3. Express the concentration in normality
4. Express the concentration in molality
Part 2: An alcohol, Ethanol (C2H5OH), is present in 1L of wine that is 12% alcohol by volume. The density of the solution is 0.984 g/mL, and the density of pure alcohol is 0.789 g/mL. (C2H5OH = 46.07 g/mol)
Answer these items 1-2 for part 2:
1. What is the weight of the alcohol present in wine?
2. What is the molarity of the solution?
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