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Based on this. What was the percentage by mass of water in the sample?

Based on this. What was the percentage by mass of water in the sample?

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter12: Chemical Equilibrium
Section12.1: Characteristics Of Chemical Equilibrium
Problem 12.1E: The introduction to this chapter states that at a given temperature the concentration of a pure...
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Based on this. What was the percentage by mass of water in the sample?
The data below apply to questions 13 18. A sample is believed to consist of Epsom Salt, MgSO4 7H20. However, it may not be pure. The sample was analyzed by weighing it, heating it to drive off water, and weighing it again. Using these data, calculate the answers to questions 10 - 15. (You may want to work the answers out on paper before entering them. If you use scientific notation, enter it in "calculator" format, i. e. "1.234e-5") 30.453 g Mass of empty beaker: Mass of beaker plus sample, before heating: 31.909 g 31.176 g Mass of beaker plus sample, after heating:
Transcribed Image Text:The data below apply to questions 13 18. A sample is believed to consist of Epsom Salt, MgSO4 7H20. However, it may not be pure. The sample was analyzed by weighing it, heating it to drive off water, and weighing it again. Using these data, calculate the answers to questions 10 - 15. (You may want to work the answers out on paper before entering them. If you use scientific notation, enter it in "calculator" format, i. e. "1.234e-5") 30.453 g Mass of empty beaker: Mass of beaker plus sample, before heating: 31.909 g 31.176 g Mass of beaker plus sample, after heating:
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