Odpowiedzi

2010-04-07T14:05:03+02:00
Cp= ms/mr *100%
15%= ms/250 *100%
15/100 = ms/250
100ms=3750 / 100
ms=37,5g
2 4 2
2010-04-07T14:05:50+02:00
Mr = 250 g roztworu
Cp = 15%
ms = ?

Cp = ms/mr *100%

ms = Cp*mr / 100%
ms= 15*250 /100 = 37,5 g NaOH
2 5 2
2010-04-07T14:05:53+02:00