Chemistry
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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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Calculate the osmotic pressure of a 8.1 x 10-2 M solution of NaCl at 25°C (298 K).
1.982 atm
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Formula
Osmotic pressure = i * C * R * T Where i is van't Hoff factor, C is the concentration in molarity, R is gas constant, T is the temperature in K
For NaCl it is strong electrolyte it will completely dissociate and give two ions in solution
=> i = 2
Given C = 8.1 * 10-2 M = 8.1 * 10-2 mol/L; T = 298 K
and R = 0.0821 L-atm/ mol-K
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