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10 grade science

What is the molar mass of calcium phosphate?

Profile image of Aniket Singh
1 Year agoGrade
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1 Answer

Profile image of Askiitians Tutor Team
1 Year ago

The molar mass of calcium phosphate (Ca3(PO4)2) can be calculated by adding up the molar masses of its constituent elements.

The molecular formula for calcium phosphate (Ca3(PO4)2) indicates that it contains three calcium (Ca) atoms, two phosphate (PO4) groups, and a total of eight oxygen (O) atoms.

Here are the molar masses of the individual elements:

Calcium (Ca) has a molar mass of approximately 40.08 g/mol.
Phosphorus (P) has a molar mass of approximately 30.97 g/mol.
Oxygen (O) has a molar mass of approximately 16.00 g/mol.
Now, calculate the molar mass of calcium phosphate:

Molar mass of Ca3(PO4)2 = (3 × molar mass of Ca) + (2 × molar mass of PO4) = (3 × 40.08 g/mol) + (2 × (1 × molar mass of P + 4 × molar mass of O)) = (3 × 40.08 g/mol) + (2 × (1 × 30.97 g/mol + 4 × 16.00 g/mol))

Molar mass of Ca3(PO4)2 ≈ 120.24 g/mol + 2 × (30.97 g/mol + 64.00 g/mol) ≈ 120.24 g/mol + 2 × 94.97 g/mol ≈ 120.24 g/mol + 189.94 g/mol ≈ 310.18 g/mol

So, the molar mass of calcium phosphate (Ca3(PO4)2) is approximately 310.18 grams per mole (g/mol).