Chemistry
Find the empirical formula of the compounds with the following percentage composition:
Pb = 62.5%, N = 8.5%, O = 29.0%
Mole Concept
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Answer
| Element | % composition | At. mass | Relative no. of atoms | Simplest ratio |
|---|---|---|---|---|
| Pb | 62.5 | 207 | = 0.301 | = 1 |
| N | 8.5 | 14 | = 0.607 | = 2 |
| O | 29 | 16 | = 1.81 | = 6 |
Hence, Simplest ratio of whole numbers = Pb : N : O = 1 : 2 : 6
Hence, empirical formula is Pb(NO3)2.
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