Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 13 - Solutions - Exercises - Problems - Page 479: 34


see solution

Work Step by Step

According to the given data, A $KCl$ solution containing 42 g of $KCl$ per 100 g of water is cooled from 60 °C to O °C. The solubility of $KNO_3$ at 60 °C = 45 g / 100 g of water. So, the given solution acts as an unsaturated solution at this temperature. The solubility of $KNO_3$ at 0 °C = 27 g / 100 g of water. At this temperature, the given solution acts as a supersaturated solution. So, cooling down from 60 °C to 0 °C results in the recrystallization of $KCl$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.