If two gases have molar masses 
, Graham’s law states that the ratio R of their rates of effusion through a small opening is given by 
. The effusion rate of an unknown gas through a small opening is measured to be 1.66 ± 0.03 times greater than the effusion rate of carbon dioxide. The molar mass of carbon dioxide may be taken to be 44 g/mol with negligible uncertainty.
a. Estimate the molar mass of the unknown gas, and find the uncertainty in the estimate.
b. Find the relative uncertainty in the estimated molar mass.
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Answer the following statement true (T) or false (F)
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Answer the following statement true (T) or false (F)
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