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masa KOH = 112,5 g
gestosc 1,45g/mol = 1450 g/dm3
masa molowa = 56g/mol
wpier obliczamy stezenie procentowe
Cp=ms/mr*100%
Cp=112,5/250*100% = 45%,
a stezenie molowe obliczamy ze wzoru:
Cmol = Cp*d/100%*M
Cmol = 45*1450/100*56 = 11,65 mol/dm3