Odpowiedzi

2010-04-09T21:22:52+02:00

Cp=ms/mr*100%

Cp=296/(296+2000)*100%

Cp=13%

 

d=m/V

V=2296/1,15

V=1997cm3=1,997dm3

 

148g MgNO3 --------1 mol

296g MgNO3 -------- X

X=2 mole

 

Cm=n/V

Cm=2/1,997

Cm=1 mol/dm3