1. A blood serum sample is analyzed and found to contain 102.5 µg Ca*/mL serum. The density of the serum is 1053 kg/m³; AW Ca = 40.08. What is the Ca+ concentration, in terms of (a) molarity ? (b) meq Ca?* /L serum? (c) ppm Ca+2 by wt? 2. How many mL of a 0.250M KCI solution must be diluted to 1.000 L so that the diluted solution (density = 1.00 g/mL ) is 400 ppm K* by weight ? (MW KCI = 74.55; AW K = 39.10)

1. A blood serum sample is analyzed and found to contain 102.5 µg Ca/mL serum. The density of the serum is 1053 kg/m³; AW Ca = 40.08. What is the Ca+ concentration, in terms of (a) molarity ? (b) meq Ca? /L serum? (c) ppm Ca+2 by wt? 2. How many mL of a 0.250M KCI solution must be diluted to 1.000 L so that the diluted solution (density = 1.00 g/mL ) is 400 ppm K* by weight ? (MW KCI = 74.55; AW K = 39.10)

Living By Chemistry: First Edition Textbook

1st Edition

ISBN:9781559539418

Author:Angelica Stacy

Publisher:Angelica Stacy

ChapterU4: Toxins: Stoichiometry, Solution Chemistry, And Acids And Bases

SectionU4.13: Bearly Alive: Solution Concentration

Problem 10E

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