Ile gramów wodorotlenku potasu o stęzeniu 40% można przygotować mając 30 gram suchych granulek KOH?
Cp= 40%
ms= 30g
mr= ?
Cp= ms*100%/mr |*mr
mr*Cp= ms*100% |:Cp
mr= ms*100%/Cp
mr= 30g * 100%/ 40%
mr= 75g
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Cp= 40%
ms= 30g
mr= ?
Cp= ms*100%/mr |*mr
mr*Cp= ms*100% |:Cp
mr= ms*100%/Cp
mr= 30g * 100%/ 40%
mr= 75g