A student (Sam) is helping a friend (Devin) solve a

Last updated: 7/9/2022

A student (Sam) is helping a friend (Devin) solve a stoichiometry problem. Devin needs to know how many liters of nitrogen monoxide (NO) gas are created at STP when 32.2 g of solid copper reacts with excess nitric acid. 3Cu(s) +8HNO3(aq) 3Cu(NO3)2 (aq) + 4H₂O(l) + 2NO(g) Devin knows they should put 32.2 g Cu down first, and they also know they need to convert from grams to something else. Sam provides a clue to Devin: they will need 3 conversion factors (which are empty, below). What does Devin need in order to complete the first conversion factor? Below is what Devin has so far: 32.2 g Cu The molar mass of nitrogen monoxide The STP volume of gas (22.4 L/mol) Avogadro's number The molar mass of copper Coefficients from the balanced equation (molar ratio)