each mole of Al produces 3/2 mole of H2
so you will get 3/2 * 4.55 = 6.825 moles of H2
now multiply that by the molar mass of H2.
2Al+3H2SO4⟶3H2+Al2(SO4)3
what mass of hydrogen is produced from 4.55 mol of aluminum?
2 answers
Math