Pressurized Metal Gas Cylinders Are Generally Used to Store Commonly $\rarr$

Short Answer

Pressurized metal gas cylinders are generally used to store commonly used gases in the laboratory.At times, it can be easier to chemically prepare occasionally used gases..For example, nitrogen monoxide, NO(g), can be prepared in the lab by the following chemical reaction:
3Cu(s)+ 8HNO₃(aq) $\rarr$ 2NO(g)+ 3Cu(NO₃)₂(aq)+ 4H₂O(l)
If 15 g of copper metal was added to an aqueous solution containing 6.0 moles of HNO₃, how many moles of NO(g)would be produced, assuming a 75% yield.