How much hydrogen must react with carbon to produce 0.3 mol of methane?

The reaction of obtaining methane from carbon and hydrogen is described by the following chemical reaction equation.

C + 2H2 = CH4;

A hydrogen molecule consists of two hydrogen atoms. The methane molecule contains four hydrogen atoms. Therefore, to obtain methane, twice the amount of hydrogen is required.

N H2 = 2 N CH4 = 2 x 0.3 = 0.6 mol;