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Cel mai inteligent răspuns!
2014-06-09T21:50:13+03:00
A)0,001 M = 10 la -4 M
pH = -lg[HBr]= -lg 10 la -4 => pH = 4
pOH = 14-pH = 14-4=10
b)0,1M = 10 la -1 M
pOH=-lg[KOH]=-lg 10 la -1 => pOH = 1
pH = 14-pOH= 14-1=13