`H_2S`, a toxic gas with rotten egg like smell, is used for the qualitative analysis. If the solubility of `H_2S` in water at STP is 0.195 m, calculate Henry's law constant.

Calculate the mass of CO_2 in 500 mL of soda water when packed unde 2.5 atm CO_2 pressure at 298K. Given that density of water is 1g mL^-1 and Henry's law constant for CO_2 in water is 1.67xx10^8 Pa at 298K.

Account for the following Thermal stability of water is much higher than that of H_2S .

If N_2 gas is bubbled through water at 293K how many milliomoles of N_2 would be dissoved in 1 litre of water? Assume that N_2 exert sa partial pressure of 0.987 bar. Given that Henrey's law constant for N_2 at 293K is 76.48K bar.

A 14.5 kg mass, fastened to the end of a steel wire of unstretched length 1.0 m, is whirled in a vertical circle with an angular velocity of 2 rev/s at the bottom of the circle. The cross-sectional area of the wire is 0.065 cm^2 . Calculate the elongation of the wire when the mass is at the lowest point of its path.

0.52g of glucose (C_6H_12O_6) is dissolved in 80.2g of water calculate the boiling point of the solution. ( K_b for water is 0.52 K kg mol^-1 ).

A ball is thrown vertically upwards with a velocity 4.9 m/s from the floor of a bridge over water. The ball strikes water after 2 seconds. Calculate the height of the bridge.

State Henry's law. At the same temperature, CO_2 gas is more soluble in water then O_2 gas. Which one of them will have higher value of K_H ?

The number of moles of H_2 in 0.224 liters of hydrogen at STP (assuming ideal gas behaviour) is-

Answer the following: Why H_2O is a liquid whereas H_2S is gas at room temperature?