Question

How many molecules (not moles) of NHs a moles) of NHs are produced from 2.89x104 g of H2? Express your answer numerically as the n umber of molecules. View Available Hint(s) molecules Submit Request Answer

Answer 1

H_2 + N_2 rightarrow NH_3 first we will balance the reaction 3 H_2 + N_2 rightarrow 2 NH_3 3 mole of N_2 produced 2 mole of NH_3 3 mole of H_2 = 2 mole of NH_3 3 times Amount of H_2 (ing)/Molecular weight - 2 times Amount of NH_3 produced (ing)/molecular weight 3 times 2.89 times 10^-4/2 = 2 times Amount of NH_3 produced/17 Amount of NH_3 produced = 3.69 times 10^-3 gm Mole of NH_3 = Amount of NH_3 produced/molecular weight = 3.69 times 10^- 3/17 = 2.171 times 10^- 4 mole = no. of molecules of NH_3/N_A [N_A = 6.022 times 10^2] no. of molecule of NH_3 = 2.171 times 10^-4 times 6.022 times 10^23 = 1.307 times 10^20