A thoroughly dried 1.271 g sample of Na2SO4 is exposed to the atmosphere and found to gain 0.387 g in mass. What is the percent, by mass, of Na2SO4 10 H₂O in the resulting mixture of anhy- drous Na₂SO4 and the decahydrate?

A thoroughly dried 1.271 g sample of Na2SO4 is exposed to the atmosphere and found to gain 0.387 g in mass. What is the percent, by mass, of Na2SO4 10 H₂O in the resulting mixture of anhy- drous Na₂SO4 and the decahydrate?

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter21: Chemistry Of The Nonmetals

Section: Chapter Questions

Problem 74QAP

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

107. A thoroughly dried 1.271 g sample of Na₂SO4 is
exposed to the atmosphere and found to gain 0.387 g
in mass. What is the percent, by mass, of
Na₂SO4 10 H₂O in the resulting mixture of anhy-
drous Na₂SO4 and the decahydrate?

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