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What is the percentage of P(2)O(5) in ca...

What is the percentage of `P_(2)O_(5)` in calcium phosphate `[Ca_(3)(PO_(4))_(2)]`?

Text Solution

Verified by Experts

Gram-fromula mass of `Ca_(3)(PO_(4))_(3)`
`=[3xx40+2(31+64)]=310`
`Ca_(3)(PO_(4))_(2)` can be regarded as `[3CaO*P_(2)O_(5)]`
Gram-molecular mass of `P_(2)O_(5)=(2xx31+5xx16)=142g`
`therefore%` of `P_(2)O_(5)` in calcium phosphate`=(142)/(310)xx100=45.8`
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