Question

1. Which aq solution has the lowest freezing point?

a)0.100 m Li2SO4

b)they all have the same

c)0.060 m Na3PO4

d)0.100 m NaNO3

e)0.200 m C3H8O3

2. Pure benzene boils at 80.1 degree C and has a Kb= 2.65. What is the boiling point in degree C. of a solution made from 7.37x10^1 g of naphthalene (mm=128.16 g/mol) and 5.900x10^2 g of benezene?

Answer 1

Date Page No. ATL=ix mx kg Af depression in freezing point i voint hoff facter 5 Flowering of M= morality I prezing Poent, Rf coryfent. otoon lio soy | Brso 2017 at Sou? - 1=3 ATTE 3X00:3°C e mo rimum ATS Di Nazpon – 3 Nat et Pompa 0:06Mre: 0:2400 °C 1. grloom NaNO3 NONO - Not a no ATY= 2x01 = 0.2°C civo you Cg Hp Oy (i=)), non euicholgte. Atb= x 0.2 0.2°C lowest freezing point = 0.100 m Lysoul