1. A 15.67 g sample of a hydrate of magnesium carbonate, MgCOs, was heated, without decomposing the carbonate, to drive off the water. The mass after heating sufficiently was reduced to 7.58 g. a) Find the percent of water. b) Find the moles of water. c) Find the moles of anhydrous salt. d) Calculate X the number of water molecules in a hydrate sample (X H:O) and e) what is the formula of the hydrate?

1. A 15.67 g sample of a hydrate of magnesium carbonate, MgCOs, was heated, without decomposing the carbonate, to drive off the water. The mass after heating sufficiently was reduced to 7.58 g. a) Find the percent of water. b) Find the moles of water. c) Find the moles of anhydrous salt. d) Calculate X the number of water molecules in a hydrate sample (X H:O) and e) what is the formula of the hydrate?

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter4: Chemical Reactions In Solution

Section: Chapter Questions

Problem 4.117QE

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