Question

Calculați compozitia procenntuala aal carbonatului de cupru .....Va rog frumos repede !!!!​

Answer 1

CuCO3

-se calculeaza masa molara

M=64  + 12 + 3.16=124--->124g/moli

124 g CuSO4--------------64g Cu---------12g C --------------48g O

100 g---------------------------x---------------------y---------------------z

x=100.64 : 124=51,61 % Cu

y=100.12 : 124=9,68%C

z=100.48 : 124=38,7% O %