Oblicz, ile gramów wodorotlenku sodu przereaguje z 30g 10-procentowego roztworu kwasu mrówkowego.
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mr=30g
Cp=10%
ms=Cp*mr/100%
ms=30*10/100
ms=3g kwasu
mNaOH=40u
mHCOOH=46u
NaOH + HCOOH---->HCOONa + H2O
40g NaOH-------46g HCOOH
xg NaOH---------3g HCOOH
x = 2,61g NaOH