Chemistry: The Molecular Science (5th Edition)

by Moore, John W.; Stanitski, Conrad L.

Published by Cengage Learning

ISBN 10: 1285199049

ISBN 13: 978-1-28519-904-7

Chapter 2 - Chemical Compounds - Exercise 2.19 - Amount of an Ionic Hydrate - Page 8: b

Answer

There are $0.081$ moles of Epsom salt in 20g of that.

Work Step by Step

As we calculated in the last exercise, the molar mass for Epsom salt is equal to 246.52g/mol. $20g \times \frac{1 mol}{246.52g} = 0.081 moles$

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