Question

20 g of K3PO4 dissolved in 350 ml water,to come up with 500 ml solution.
calculate :
molecular weight
Equivalent weight
molarity
normality
molality

Answer 1

And you know how to do which ones? What do you not understand. The definitions is where you start.

Answer 2

How Ican calculate equivalent weight
How Ican convert 500 ml to 500 kg to use it in molality

thank you