solutions Flashcards
1
Q
w/v%?
A
w/w% x d
2
Q
M
A
10 x w/w% x d/ MM[solute]
3
Q
m
A
1000M/1000d-MxMM[solute]
4
Q
roults law
A
Pa[soln]=Poa[solvent]Xa[soln]
5
Q
P[total]
A
Poa+[Pob-Poa]Xb
Pob+[Poa-Pob]Xa
5
Q
eg ideal soln
A
n. hexane n. heptane
bromoethane and chloroethane
6
Q
eg -ve deviation
A
chloroform and acetone
acid + water
7
Q
eg +ve deviation
A
ethanol and acetone
ethanol water
CS2 acetone
8
Q
relative lowering of vapour pressure
A
Xb=Poa-Pa/Poa=nb/na=nb
9
Q
elevation in boiling point
A
^Tb= Tb-Tob
^Tb= imKb
10
Q
osmotic pressure
A
Pie=iCRT
pie[atm]=R=0.0821
pie[bar]=R=0.0831
10
Q
Depression in freezing point
A
^Tf= Tof-Tf
^Tf= imKf
11
Q
i
A
abnormal CP/normalCP = NormalMM/abnormalMM
12
Q
NON ELECTROLYTE i=?
A
i=1, urea glucose sucrose
12
Q
electrolyte
dissociation i=?
Association i=?
A
Dissociation i>1
i=1+[n-1]alpha[degree of dissociation ]
Association I<1
I=1+[1/n-1] alpha
