Calculate the relative molecular weight of Ca (Po4) 2.
| December 11, 2020 | education
To calculate the molecular weight of simple and complex substances, it is necessary to find the sum of the relative atomic masses of the atoms that make up the molecule.
Ca (Po4) 2
1) We look at the relative atomic mass in the Periodic System and multiply it by the number of molecules,
Ca = 40, P = 31, O = 16,
2) We write
40+ (31 + 16 × 4) × 2 = 230
Answer: 230
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