Question

how many grams of hydrogen are needed to produce 1.80g of water according to this equation 2H2+O2= 2H2O

Answer 1

If I remember correctly is......1,80 g * (1 mol / 18,01 g H2O) * (2 moles de H2 / 2 moles de H2O) * (2,02 g H2 / 1 mol H2) = 0,202 g H2.