Question

Equal weights of ethane and hydrogen are mixed in an empty container, then find the Mole fraction of ethane in the mixture.
Answer with Explanation. ​

Answer 1

Say, we have taken 30g of methane and 30g of hydrogen, (equal weights)

molecular weight of Methane (C2H6) is 30g/mol

and for Hydrogen is 1g/mol

let's get started!

as, we have taken, 30g of methane, so,

mole of methane is = 30 (g) /30 (g/mol)

methane mole is = 1mol

I believe it is hydrogen gas not hydrogen atom so,

similarly, for Hydrogen gas,

molecular weight of hydrogen is = 2g/mol

mol of hydrogen for 30g is,

30/2 = 15moles

mole fraction of methane is = no. of moles of methane/ (no. of moles of methane + no. of moles of hydrogen)

mole fraction of methane = 1/(1+15)

mole fraction of methane= 0.0625