1. A solution is prepared by taking a clean and dry 50.0 ml volumetric flask. You are tasked to prepare a saline solution with your table salt placed in a watch glass. You measured the following in the laboratory. 147 g Mass of volumetric flask Mass of watch glass glass + salt Mass of watch glass after adding salt to the volumetric flask 30.0 g 23.5 g Some water is added to the flask. The solution is stirred until all salt is dissolved. The filled flask of the saline solution is then weighed again. Mass of filled flask 202 g What are the mole fractions of sodium chloride and water?

1. A solution is prepared by taking a clean and dry 50.0 ml volumetric flask. You are tasked to prepare a saline solution with your table salt placed in a watch glass. You measured the following in the laboratory. 147 g Mass of volumetric flask Mass of watch glass glass + salt Mass of watch glass after adding salt to the volumetric flask 30.0 g 23.5 g Some water is added to the flask. The solution is stirred until all salt is dissolved. The filled flask of the saline solution is then weighed again. Mass of filled flask 202 g What are the mole fractions of sodium chloride and water?

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 12A

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