if ammonia travels 127cm in a given time, how far will acetic acid vapor travel in the same time
According to Graham's law
the rate of duffusion of a gas is inversely proportional to square root of its molecular weight.
Rate of diffusion = distance travelled in unit time.
NOw
rate INH3) = 127cm
rate(AcOH) = ??
molar mass of NH3 = 17g/mol
molar mass of acetic acid = 60g/mol
Thus
Rate acetic acid /Rate NH3 = [molar mass of NH3/molar mass of acetic acid]1/2
rate acetic acid /127 cm = [17/60]1/2
rate of acetic acid = 67.6 cm
The distance travelled by acetic acid in same time = 67.6 cm
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