The molar mass of unknown gas was measured by effusion experiment. it was found that it took 63s for the gas to effuse, whereas nitrogen gas required 48s. what is the molar mass of the gas?a) 32g/molb) 37g/molc) 24g/mold) 16g/mole) 48g/mol

The molar mass of the gas is 48 g/mol

Explanation:

Step 1: data given

Time to effuse : 63s

Time to effuse for nitrogen = 48s

Molar mass N2 = 28 g/mol

Step 2: Calculate the molar mass

√M1 / t1 = √M2 / t2

⇒ with M1 = the molar mass of N2 = 28 g/mol

⇒ with t1 = the time to effuse for nitrogen = 48s

⇒ with M2 = the molar mass of the gas = TO BE DETERMINED

⇒ with t2 = the time to effuse the gas = 63 s

√28 / 48 = √M2 /63

0.110 = √M2 /63

M2  = 48 g/mol

The molar mass of the gas is 48 g/mol

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