Question

Quantos mols existem em; 12,5g de C2 H3 cl

Answer 1

c2h3cl-------62g/mol

62g------------1mol
12,5------------xmol
62x=12,5
x=0,2~ mol

Answer 2

c2h3cl=12*2+3*1+35,5=62,5g/mol
1mol-----62,5g
xmol-----12,5g
x=12,5/62,5
x=0,2mol