Question

Methane (CH4), ammonia (NH3), and oxygen can react to form hydrogen cyanide (HCN) and water according to this equation:

2CH4 + 2NH3 + 3O2 --> 2HCN + 6H2O
How many grams of oxygen are required to produce 1 mole of H2O?
A. 24 grams
B. 16 grams
C. 48 grams
D. 32 grams

Answer 1

assuming the molar mass of oxygen is 18.01, you only need 16 grams (B) of oxygen because the molar mass of hydrogen is about 1 gram.
16+1+1=18