Answer to Question #108768 in General Chemistry for Laylah

Question

Cu + 4 HNO3 → Cu(NO3)2+ 2 NO2 + 2 H2O 1. How many moles of NO2 are produced by the reaction of .4350 moles of copper with excess HNO3?

Answer 1

According to the stoichiometry of the reaction -

n_NO2=2n_Cu

n_Cu=0.4350mol

n_NO2=2*0.4350mol=0.8700mol

Answer: 0.8700mol of NO₂