Question

Calculate the molecular mass of the element

They give:H=1,AI=27,S=32,0=16,Cu=64,P=31,Mg=24,N=14,Na=23

Answer 1

Answer:

Cu3 (PO4)2

3×64 + 2×(31+ 4×16)

192 + 2×(31+64)

192 + 2×(95)

192+190

=382g