M,CuSO4.5H2O=M,CuSO4 + 5M,H2O= 160+90=> 250g/mol
250g piatra vanata.......160gCuSO4
1Og......................................X= 6,4g
M,NaOH= 40g/mol
1mol............2mol
CuSO4 + 2NaOH---> Na2SO4 + Cu)OH)2
160g............80g
6,4g............m= 3,2g NaOH=md
c=mdx100/ms----> ms= 3,2x100/10g= 32g solutie
