Henry’s law constant for the molality of methane in benzene at 298 K is `4.27 xx 10^5` mm Hg. Calculate the solubility of methane in benzene at 298 K under 760 mm Hg.

The air is a mixture of number of gases. The major components are oxygen and nitrogen with approximate proportion of 20% is to 79% by volume at 298K. The water is in equilibrium with air at a pressure of 10 atm. Henry's law constants for oxygen and nitrogen at 298 K are 3.30xx10^7mm and 6.51xx10^7mm respectively. calculate the composition of these gases in water.

Henry's law constant for CO_2 in water is 1.67xx10^(-8) Pa at 298 K. Calcuated the quantity of CO_2 in 500 mL of soda water when paked under 2.5 atm CO_2 pressure at 298K.

If K_(sp) for HgSO_(4) is 6.4xx10^(-5) , then solubility of this substance in mole per m^(3) is

1.0 gram of a non-volatile solute was dissolved in 100 gram of acetone (molecular mass = 58) at 298 K. The vapour pressure of solution was found to be 192.5 mm of Hg. Calculate the molecular mass of solute. The vapour pressure of pure acetone at 298 K is 195 mm of Hg.

The vapour pressure of a 5% aqueous solution of a non-volatile organic substances at 373K is 745 mm. calculate the molar mass of the solute. (Vapour pressure of water at 373K=760mm Hg).

The molar solubility of ferric hydroxide in aqueous solution is 6xx10^(-38) at 298 K. the solubility of Fe^(3+) ion will increase when the :

Vapour pressure of water at 293 K is 17.535 mm Hg. Calculate the vapour pressure of water at 293 K when 25 g of glucose is dissolved in 450 g of water.

A first order reaction is found to have a rte constant, k = 5. 48 xx 10 ^(-14). Calculate its two third life.