In a laboratory, a 15.0 mL sample of KCl solution is poured into an evaporating dish with a mass of 24.10 g. The combined mass of the evaporating dish and KCl solution is 41.50 g. After heating, the evaporating dish and dry KCl have a combined mass of 28.28 g. a) what is the mass percent (m/m) of the KCl soultion? b) what is the molarity (M) of the KCl soultion? c) if water is added to 10.0 g of the inital KCl solution to give a final volume of 60.0 mL, what is the molarity of the diluted KCl soultion?
In a laboratory, a 15.0 mL sample of KCl solution is poured into an evaporating dish with a mass of 24.10 g. The combined mass of the evaporating dish and KCl solution is 41.50 g. After heating, the evaporating dish and dry KCl have a combined mass of 28.28 g. a) what is the mass percent (m/m) of the KCl soultion? b) what is the molarity (M) of the KCl soultion? c) if water is added to 10.0 g of the inital KCl solution to give a final volume of 60.0 mL, what is the molarity of the diluted KCl soultion?
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter3: Mass Relations In Chemistry; Stoichiometry
Section: Chapter Questions
Problem 23QAP
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In a laboratory, a 15.0 mL sample of KCl solution is poured into an evaporating dish with a mass of 24.10 g. The combined mass of the evaporating dish and KCl solution is 41.50 g. After heating, the evaporating dish and dry KCl have a combined mass of 28.28 g.
a) what is the mass percent (m/m) of the KCl soultion?
b) what is the molarity (M) of the KCl soultion?
c) if water is added to 10.0 g of the inital KCl solution to give a final volume of 60.0 mL, what is the molarity of the diluted KCl soultion?
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