## Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning

# Chapter 10 Gases and Their Properties - 10-7 Diffusion and Effusion - Review & Check for Section 10-7 - Page 399: 1

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#### Work Step by Step

Molecular weights: $NH_3: 17.03\ g/mol,\ HCl: 36.46\ g/mol$ From Graham's Law: $\sqrt{\dfrac{\bar{u_A^2}}{\bar{u_B^2}}}=\sqrt{\dfrac{M_B}{M_A}}$ $rms\ ratio=0.68$

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