Question

calculate mass percentage of Ca , P and O in Ca3 ( Po4)2​

Answer 1

Answer:

Molecular formula of calcium phosphate is Ca 3 (PO 4 ) 2

.

Its molar mass is 3(40)+2(31)+8(16)=310 g/mol.

Percent of calcium = 120/310×100=38.71%

Percent of phosphorus =

62/310 ×100=20.0%

Percent of oxygen =

128/310×100=41.29%

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