Odpowiedzi

2010-03-29T19:59:36+02:00
Mr= 0,25kg= 250g
Cp=5%
Cp=ms*100%/mr
5%=ms*100%/250g
ms=12,5g
mw=237,5g
2%= 12,5g*100%/mr
mr=625g
mw=625-12,5= 612,5g
612,5-237,5=375g
odp. nalezy dolac 375g wody.