Chemistry
A hydride of nitrogen contains 87.5% percent by mass of nitrogen. Determine the empirical formula of this compound.
Mole Concept
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Answer
| Element | % composition | At. wt. | Relative no. of atoms | Simplest ratio |
|---|---|---|---|---|
| Nitrogen | 87.5 | 14 | = 6.25 | = 1 |
| Hydrogen | 12.5 | 1 | = 12.5 | = 2 |
Simplest ratio of whole numbers = N : H = 1 : 2
Hence, empirical formula is NH2
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