Answered: Describe Graham's law. Hydrogen…

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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Describe Graham's law. Hydrogen chloride gas (HCI) diffuses 1.8 times faster than an unknown gas. Determine the molar mass of the unknown gas. Show your work giving specific values used to determine the answer.

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Step 1

Graham's law of effusion:

Graham's law of effusion states that the rate of effusion of a gas is inversely proportional to the square root of the mass of its particles. This formula can be written as:

$\frac{{Rate}_{1}}{{Rate}_{2}} = \sqrt{\frac{M_{2}}{M_{1}}}$

Rate₁ is the rate of effusion for the first gas.

Rate₂ is the rate of effusion for the second gas.

M₁ is the molar mass of gas 1

M₂ is the molar mass of gas 2.

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