Question

How many grams of hydrogen gas are needed to produce 105.0 grams of water

Answer 1

We know,

1 mol H gas produces 1 mol water

So,

For 105 grams Water, we have,

if the amount of H gas required is "x"

Then,

x/2 = 105/18

x=11.67

So,

Amount of H gas required = 11.67 grams