17. Calculate the percentage concentration by mass of a solution prepared by dissolving 2.32 g of calcium chloride in 81.0 g of water. 18. How many grams of ammonium nitrate must be weighed out to make 415 g of a 58.0% by mass solution? In how many milliliters of water should it be dissolved? 19. A student weighs out a 4.80-g sample of aluminum bromide, transfers it to a 100-mL volumetric flask, adds enough water to dissolve it, and then adds water to the 100-mL mark. What is the molarity of aluminum bromide in the resulting solution?
17. Calculate the percentage concentration by mass of a solution prepared by dissolving 2.32 g of calcium chloride in 81.0 g of water. 18. How many grams of ammonium nitrate must be weighed out to make 415 g of a 58.0% by mass solution? In how many milliliters of water should it be dissolved? 19. A student weighs out a 4.80-g sample of aluminum bromide, transfers it to a 100-mL volumetric flask, adds enough water to dissolve it, and then adds water to the 100-mL mark. What is the molarity of aluminum bromide in the resulting solution?
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter15: Solutions
Section: Chapter Questions
Problem 35CR
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