Question

Calculate the formula unit mass of : a. AlPO4

Answer 1

Answer:

122 u

Explanation:

Formula unit mass is the sum of the atomic mass of all the atoms that present in formula unit of given compound.

we know the atomic mass of AlPO is as :

Al=27 , P=31, O=16

or, we could say molecular mass of aluminum = 27 u

molecular mass of phosphate = 31 + 64 = 95 u

hence, molecular mass of AlPO₄ = 27 u + 95 u    =>  122 u