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in ce cantitate de CuCl2 se va gasi aceeasi masa de clor ca in 4 moli de HCl

Răspuns :

4 moli HCL =146 g
Daca tu in 36,5g...........35,5g Cl
Atunci in 146....................x
x=142g Cl
Masa CuCl2=134,5g 
Daca in 134,5...............71g Cl
Atunc in x...................142g Cl
x=269 g CuCl2