Q.) Hydrogen cyanide, HCN, is prepared from ammonia, air and natural gas (CH4) by the following process. 2NH3(g) + 3O2(g) + 2CH4(g) ⎯→(in presence of pt) 2HCN(g) + 6H2O(g) If a reaction vessel contains 11.5 g NH3, 10.0 g O2, and 10.5 g CH4, what is the maximum mass, in grams, of hydrogen cyanide that could be made, assuming the reaction goes to completion?