Calculate the normality of HCl solution whose 500 ml is utillised to neutralise the 1500 ml of N/10 NaOH solution.

And : (3/10)

Henry`s law is not applicable for the aqueous solution of.......

(A) O2 

(B) N2

(C) SO3

(D) He

Answer (C) 

Explanation: Henry`s law is not applicable for the aqueous solution of those gas which undergoes  chemical reactions with solvent (water).

Here SO3 react with water to form sulphuric acid.

Henry`s law constant of CO2 in water at 298K is 5/3 k bar. If pressure of CO2 is 0.01 bar, then find its mole fraction.

An air bubble starts rising from the bottom of lake, it diameter is 3.6 mm at bottom and 4 mm at the surface. The depth of lake is 250 cm and temperature at surface is 40℃ . What is the temperature at the bottom of lake? (Given atmospheric pressure = 76 cm of Hg and g= 980 cm sec-1 neglect surface tension effect).

A bubble of gas released at bottom. of the lake increase to four time its original volume when it reach the surface. assuming that atmosphere ic pressure is equivalent to the exerted by a column of water 10 m height. What is the depth of the lake.