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mr = 200g
Cp = 5%
ms = ?
ms = mr * Cp / 100%
mw = ?
ms = 200g * 5% / 100% = 1000g / 100 = 10g
mw = mr - ms
mw = 200g - 10g = 190g
Odp. Należy użyć 10g wodorotlenku sodu i 190g wody.
mr= 200g
C%= 5%
szukane:
mw=?
ms=?
rozwiązanie:
ms=C%×mr/100%
ms=5%×200g/100%=10g
mw=mr-ms
mw=200g-10g=190g