Please answer the 14 the ques _ and •how deviation from Ranult•.
do gases always tend to less soluble in liquids as the temperature raised?
12
many grams of potassium chloride should be added to 1.5 kg of water to freezing to
1.86•C kg mol-t.
chloride mlution at higher temperature than water. while it freeze. at lower temprature than
Explatn.
the freezing point depression of 0.1 M KCI solution nearly twice that ofO.t M sucrose solution?
n. A *tion contains 08960 g of K.S(). in 500 mL solution. Its osmotic pressure is Ryund to be 0.690 atm at
the value of Van•t Hoff factor. (R = 0.082 L atm K-l mol-l'
Raoult•s law. How would you distinguish ix•tween ideal and non•ideal solutions with the help or the law.
we get molar masses of the substances by using colligative prov»rlies of the solutions
the factors With suitable examples which bring abnormality tn results.
aqueous solutions contatmng retvx•ctively 7 5 g of urea (molar mass 60) and 42.57 g of substance X
g water freeze at the same temFrature. Calculate the molecular mass of X.
and over the entire of cotnvx•satvon The pressure or pure An.
300 K SO Hg •n.d 32.06 mm Hg Calculate the mole fraction of i.nzene phase
mth of toluene
relative lowering in vapour pressure? Show that relative lowering in vapour pressure is a colltgauv
Calculate normal freezing point of a sample sea water contauung 3.8 NaCl and 0.124 SlgC1.. b
mass. Gwen K, 1.86 K kg mol•l, molar tna.s. of NaCl 58.5 and StgClz 95 g mol•l.
Calculate the of H,SO, by weaght (density 1.8 required to prepare IL or 0.2 Sl solutiot
