What is the formula of potassium phosphate in grams/mole?

1 Answer
Owen Bell
Dec 27, 2015

The formula of potassium phosphate is #K_3PO_4# .
Its relative formula mass is #212.2663 g mol^-1# .

Explanation:

The formula mass - which I believe is what you were looking for in the first place - can be found by adding up the relative molecular masses of each species in the formula unit.

#3(39.0983) + 30.9738 + 4(15.999) = 212.2663 g mol^-1#

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