The pH of rain water collected in a certain region of Maharashtra on particular day was 5.1. Calculate the H+ ion concentration of the rain water and its percent dissodation.

What will be the approximate terminal velocity of a rain drop of diamteter 1.8xx 10^(-3)m, when density of rain water ~~10^(3)kgm^(-3) and the co-efficient of viscosity of air ~~1.8xx10^(-5)Nsm^(-2) ? (Neglect buoyancy of air. )

In the electrolysis of water, one of the half reaction is 2H_(aq)^+ + 2e^- rarr H_(2(g)) . Calculate the volume of H_2 gas collected at 25^@C and 1 atm pressure by passing 2A for lhr through the solution. R = 0.08205 L. atm K^(-1) mol^(-1) .

The molar conductivity of 0.01M acetic add at 25^@C is 16.5 Omega^(-1) cm^2 mol^(-1) . Calculate its degree of dissodation in 0.01 M solution and dissodation constant if molar conductivity of acetic add at zero concentration is 390.7Omega^(-1) cm^2 mol^(-1) .

Ammonia and oxygen react at high temperature as : 4 NH_(3(g)) + 5O_2(g)rarr 4NO(g) + 6H_2O_(g) In an experiment, rate of formation of NO(g) is 3.6 xx 10^(-3) mol L^(-1). s^(-1) Calculate :-Rate of formation of water.

What is the concentration of sugar (C_12H_22O_11) in mol L^-1 if its 20g are dissolved in enough water to make a final volume up to 2L?