Question

Oblicz masę cząsteczkową:

1.

2.

Answer 1

a)

m((NH₄)₃PO₄)=3·14u+12·1u+31u+4·16u=42u+12u+31u+64u=149u

b)

m(Fe₂(SO₃)₃)=2·56u+3·32u+9·16u=112u+96u+144u=352u

Answer 2

1. 3*14+12*1+31+4*16= 149 g/mol

2. 56*2+32*3+ 16*9=352 g/mol