How to prepare a solution of a given molarity • To prepare a 1 L solution of 0.100 M potassium chromate (K2CrO4) solution: 1. Weigh 19.4 g of K2CrO4 (1 mol K2CrO4 weighs 194 g) 2. Transfer 19.4 g of K2CrO4 to a 1 L volumetric flask 3. Add enough water to dissolve all the K2...
Water is evaporated from 135 mL of a 0.188 M {eq}K_2SO_4 {/eq} solution until the volume becomes 105 mL. What is the molarity of potassium sulfate solution that results? Dilution and Concentration: When some amount...