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CH3COOH+CH3OH--->CH3COOCH3+H2O
25 g xg
60u---18u
25g---xg
x=25g*18u/60u
x=7,5 g
CH3COOH + CH3OH----->CH3COOCH3 + H2O
mH2O = 2u + 16u = 18u
mCH3COOH = 2 * 12u + 2 * 16u + 4 * 1u = 60u
60u kwasu -------------------------- 18u wody
25g kwasu --------------------------- x g wody
x = 25g * 18u / 60u
x = 7,5g wody
Z 25g kwasu powstanie 7,5 g wody