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m=v*d
m=20cm3 * 1,125g/cm3 = 22,5g
25g kwasu------100g roztworu
xg kwasu--------22,5g roztworu
x=5,6g kwasu
mHCl=36,5u
mKCl=74,5u
KOH + HCl----->KCl + H2O
36,5g HCl-------74,5g KCl
5,6g HCl---------xg KCl
x=11,4g KCl
Powstanie 11,4g chlorku potasu (KCl)