Answered: solution is at 298 K. (R=0.08206…

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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Question

A solution contains 3.86g of magnesium chloride and 250g of water. Compute for the
freezing point depression of the solution. (K, water: 1.86 °C/m)
A. 0.16 AC
B. 0.25 PC
C. -0.25 PC
D. -0.90 °0
Assume that a 1-L solution contains 35g of potassium chloride (MM: 74.6 g/mol).
Compute for the osmotic pressure if
the solution is at 298 K. (R=0.08206 L-atm/mol-K)
A. 22.95 atm
B. 24.50 atm
C. 11.47 atm
D. -11.47 atm
Suppose that a 1 m sugar-water solution raises the boiling point of water by 0.51 °C.
How much will the boiling point of water increase if the sugar-water solution amounts to 3 m?
A. 0.51 °C
B. 1.02 °C
C. 1 53 PO
D. 101.53 °C

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