Vreliste

Submitted by medicinar97 on Fri, 10/30/2015 - 20:44
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Izracunaj vreliste vodenog rastvora NaCl-a ciji je maseni udio 0,09.

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milicaradenkovic - Sun, 11/01/2015 - 09:14

NaCl----------------->Na+ + Cl-

i=1+alfa*(n-1)

n=2 a alfa=100 % pa je i=1+1*(2-1)=2

dT=Kb*b*i

b=n/m(rastvaraca)

b=w/(Mr-w*Mr)

b=0.09/(0.0585-0.09*0.0585)

b=0.09/0.053235

b=1.69 mol/kg

dT=0.52*1.69*2=1.7576 C