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....................... x%
350g 70% .................. x
200/350 = 70-x/x
200x = 350(70-x)
200x = 24500-350x
550x = 24500
x = 44,5%
Dane Szukane
mr = 350g ms =?
Cp = 70%
ms = Cp * mr / 100%
ms = 70% * 350g / 100%
ms = 245g
Roztór 2 po zmieszaniu z wodą
Dane Szukane
mr = 350g + 200g (dolanej wody) = 550g Cp = ?
ms = 245g (tyle co w roztorze 70%)
Cp = ms * 100% / mr
Cp = 245g * 100% / 550g
Cp = 44,5 %