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In Ostwald's process for the manufacture...

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?

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The balanced equation for the reaction is
`4NH_(3)(g)+5O_(2)overset(1100K)underset(pt)rarr 4 NO(g)+6H_(2)O(g)`
here 68 g of `NH_(3)` will react with `O_(2)=160 g`
`therefore` 10g of `NH_(3)` will react with `O_(2) =160/160xx20-=15g`
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Ammonia is oxised by oxygen to give nitric oxide and water. The weight of water produced per gram of nitric oxide is 0.1 xx x g . What is value of x.

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