What is the molar mass of Ca_3(PO_4)_2?

1 Answer
anor277
Feb 4, 2017

Can you tell me the molar mass of ATOMIC calcium, phosphorus, and oxygen?

Explanation:

In fact you can do this, because you do have access to a Periodic Table, and the atomic masses are printed on the Table. All scientists use the Table daily to assign molecular masses.

And the atomic mass of calcium metal is 40.1*g*mol^-1, of phosphorus it is 31.00*mol^-1, of oxygen it is 15.99*g*mol^-1.

And to determine the molecular mass, all I do is appropriately sum these atomic masses: (3xx40.1+2xx31.0+8xx16.00)*g*mol^-1, and what do you get?

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