Chemistry
Silicon (Si = 28) forms a compound with chlorine (Cl = 35.5) in which 5.6 g of silicon combines with 21.3 g of chlorine. Calculate the empirical formula of the compound.
Mole Concept
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Answer
| Element | Mass | At. wt. | gram atoms | Simplest ratio |
|---|---|---|---|---|
| Silicon | 5.6 | 28 | = 0.2 | = 1 |
| Chlorine | 21.3 | 35.5 | = 0.6 | = 3 |
Simplest ratio of whole numbers = Si : Cl = 1 : 3
Hence, empirical formula is SiCl3
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