In Ostwald's process for the manufacture of nitric acid, the first step involves the oxidation of ammonia gas by oxygen gas to give nitric oxide gas and steam. What is the maximum weight of nitric oxide that can obtained starting only with `10.00 g` of ammonia and `20.00 g` of oxygen?

Explanation

`4NH_3(g) +5O_2(g) rarr 4NO(g) +6H_2O(g)`
`4xx17 " "5xx32" "4xx30`
`=68g" "=160g" "=120g`
160 g of `O_2` will react with 68 g of `NH_3`
20 g of `O_2` will react with `NH_3=(68)/(160) xx20`
= 8.5 g
`:. O_2` is a limiting reagent
160 g of `O_2` produces NO = 120 g
20 g of `O_2` will produces NO `=(120)/(160) xx20`
= 15 g