Răspunsuri

2014-05-21T16:12:19+03:00
CaCO3 + 2 HCl ---> CaCl2 + H2O + CO2
100 g CaCO3.......2*36,5 g HCl......22,4 litri CO2
200 g CaCO3...........x g HCl...........y litri CO2
x = md = 146 g HCl      y = 44,8 litri CO2
c%=md/ms*100=>ms=146/18,25*100=>ms=800 g solutie
10 3 10