1.

Write the formula of the Magnesium Phosphate compound and calculate molecular mass.

Answer»

Magnesium Phosphate : Mg3(PO4)2
Molecular mass = (3 x Atomic mass of Mg) + 2 x (1 x atomic mass of P + 4 x atomic mass of 0)
= (3 × 24) + 2[1 × 31 + 4 × 16]
= 72 + 2(31 + 64)
= 72 + 2(95)
= 72 + 190
= 262 g/mol


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