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mCO₂=44u
CaCO₃ + 2HCl ---> CaCl₂ + CO₂ + H₂O
a) Obliczam ile jest czystego CaCO₃
100g wapienia ---- 36g CaCO₃
200g wapienia ---- xg CaCO₃
x = 72g CaCO₃
b) obliczam ile wydzieli się CO₂
100g CaCO₃ ----- 44g CO₂
72g CaCO₃ ------ xg CO₂
x = 31,68g CO₂