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Question
The percentage composition of a gas is Nitrogen 82.35%, Hydrogen 17.64%. Find the empirical formula of the gas. [N = 14, H = 1]
Solution
No. of mole of nitrogen = `82.35/14 = 5.88`
No. of mole of Hydrogen = `17.64/1 = 17.64`
The ratio of their mole is 5.88:17.64
1 : 3
So the empirical formula is `NH_3`
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