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ms =20 g
mr = 20g + 70 g = 90 g
szukane :
Cp=?
Cp = 20g*100%/90g = 22%
ms = 20g mr = ?
mw = 70g Cp = ?
mr = ms + mw
mr = 20g + 70g = 90g
Cp = ms * 100% / mr
Cp = 20g * 100% / 90g
Cp = 22,2%
tężenie % tego roztworu wynosi 22,2%