What is the gram-formula mass of Ca3(PO4)2 ? 1) 355 g/mol
2) 340. g/mol
3) 310. g/mol
4) 275 g/mol

3) 310 g/mol

Explanation:

Hello,

In this case, for calcium carbonate, we are able to compute its gram-formula mass by considering the atomic mass of each element composing it and their subscripts as shown below:

Thus, we compute:

Hence answer is 3) 310 g/mol . Remember this is also known as the molar mass of the mentioned compound.

Best regards.

yes they ca   is ur ansswerrr

the answers would be

the first one and the second one