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Hydrogen gas (h2) is found to diffuse 4.00 times as fast as oxygen, o2 . Using this information, determine how the masses of hydrogen molecules and oxygen molecules compare.
Accepted Answer
Graham's law of effusion states that the rate of effusion of a gas is inversely proportional to the square root of its molar mass. Since hydrogen diffuses 4 times faster than oxygen, the ratio of their effusion rates is 4:1. Therefore, the square root of the ratio of their molar masses is 1:4. This means the molar mass of hydrogen is 16 times smaller than the molar mass of oxygen.
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