[Avotere]

8.00g of methane is completely converted to methanol. Calculate, to three sig figs, the final volume of hydrogen at STP in dm3.

[Borek]

Please read the forum rules. You have to show your attempts at answering the question/solving the problem to receive help, it is a forum policy.

Plus, the question as asked doesn't make much sense. Hydrogen is not an obvious product of the methane oxidation to methanol. It can definitely appear as a sideproduct in some processes, but without clearly stating what the process is question can't be answered.