Chemistry
The percentage composition of a gas is : Nitrogen 82.35%, Hydrogen 17.64%. Find the empirical formula of the gas.
[N = 14, H = 1]
Stoichiometry
ICSE 2018
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Answer
| Element | % composition | At. wt. | Relative no. of atoms | Simplest ratio |
|---|---|---|---|---|
| Nitrogen | 82.35 | 14 | = 5.88 | = 1 |
| Hydrogen | 17.64 | 1 | = 17.64 | = 3 |
Simplest ratio of whole numbers = N : H = 1 : 3
Hence, empirical formula is NH3
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