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mr1=200g
ms1=40g,
mr2=70g (50g wody i 20g stałego naoh)
mrc=200+70
msc=40+20
Cp2 = 60*100/270
cp=22,2%
x-20%
x=200*20/100=40g
40g+20g=60g
200g+50g+20g=270g
270g-100%
60g-x
x=60*100/270=22,(2) sterzenie otrzymanego roztworu
20g soli----100g roztworu
xg soli------200g roztworu
x=20*200/100
x=40g soli
Dolewamy 50g wody i dodaje 20g NaOH
60g(40g+20g) soli----270g roztworu(200g+50g+20g)
xg soli-----100g roztworu
x=60*100/270
x=22,2g soli
x=22,2%
OTRZYMAMY ROZTWÓR 22,2%