Answered: 1. What is the vapour pressure of a non…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1. What is the vapour pressure of a non electrolyte solution made by
dissolving 82.4 g of urea (CH4N2O) in 212 mL of water at 35°C? The
vapour pressure of pure water at given temperature is 42.18 mmHg. The
density of the resulting solution is assumed at 1.0 g/mL.
i. 4.39 mmHg
ii. 6.78 mmHg
iii. 35.40 mmHg
iv. 37.79 mmHg

2. A strong electrolyte solution of potassium chloride was prepared using
water. What will be the theoretical boiling point of this solution if 0.247 kg
of potassium chloride is dissolved in 2,900 g of water?
i. 100.28°C
ii. 100.58°C
iii. 101.16°C
iv. 102.30°C

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