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Calculate the mass per cent of calcium, ...

Calculate the mass per cent of calcium, phosphorus and oxygen in calcium phosphate `Ca_(3)(PO_(4))_(2)`.

Text Solution

Verified by Experts

Molecular mass of `Ca_(3)(PO_(4))_(2)`
`=3 xx 40 + 2(31 + 3 xx 16)`
= 310
Mass of Ca `=3 xx 40 = 120`
Mass percentage of Ca `=120/310 xx 100 = 38.71%`
Mass of P `=2 xx 31 = 62`
Mass percentage of P `=62/310 xx 100 = 20%`
Mass of O `=8 xx 16=128`
Mass percentage of O `=128/310 xx 100 = 41.29%`
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