Ammonia and HCL are being prepared in two corners of a laboratory. Which gas will be detected first by the student working in the middle of the
laboratory? Explain.
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According to Graham's law of diffusion, the ratio of the rates of diffusion is inversely proportional to the ratio of the square roots of the molar masses of the gases.
Or we can state it as:
(rate1)²M1 = (rate2)²M2
Since the molar mass of NH3 is about half of the molar mass of HCl we would expect ammonia gas to diffuse more rapidly.
Explanation:
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