Question

When 2 grams of hydrogen (h2) react with 32 grams of oxygen (O2) the reaction yields hydrogen peroxide (h2o2) how many grams of ho202 are produced in this reaction

Answer 1

as per the reaction we have

$H_2 + O_2 ---> H_2O_2$

so here 1 mole of H2 react with 1 mole of O2 and give 1 mole of H2O2 as the product

now we will find the moles of given reactant

moles of H2

$n_1 = \frac{2}{2} = 1 mole$

moles of O2

$n_2 = \frac{32}{32} = 1 mole$

so here both present in 1 mole each hence the product will also formed 1 mole

so here we have

$n = 1 mole$ H2O2 will form

so mass of the product

mass = moles* molecular mass

$m = 1 * (2 + 32)$

$m = 34 g$

so the product mass will be 34 g