2moles of h2 react with 1 mole of O2 to produce 2moles of h2O than prove that law of conservation of mass is valid in give reaction ( eg. Mass of 2moles h2 in given reaction is 2×6.022×10^23 prove through this method)
One mole of any substance contains atoms or molecules.
Mass of H2 molecule = 2 amu
Mass of oxygen molecule O2 = 32 amu
Mass of H2O molecule = 18 amu
Mass of 2 moles of H2 =
Mass of 1 mole of O2 =
Thus, total mass of the reactants,
Mass of 2 moles of H2O =
Mass of the product,
Thus, total mass of the reactants = mass of the product.
Hence, mass remains conserved in the reaction.