5 moles of acid is required to change the pH of 1 litre of buffer by 2units.Find buffer capacity.

One Faraday of current was passed through the electric cells placed in series containing fused electrolytes with Ag⁺²,Ni²⁺,Cr³⁺ ions. The amount of Ag(at.wt=108), Ni(at.wt=59) and Cr(at.wt=52) deposited will be

The amount of electricity that can deposit 108gm of silver from AgNO₃ solution is

CH₂=CH₂+HCl→CH₃CH₂Cl is an example for

Hybridization at 2^nd carbon in CH₂ = CH – CH₃ is

For the reaction 2SO₂(g)+O₂(g)2SO₃(g) taking place in one litre vessel, the number of moles of SO₂ ,O₂,SO₃ at equilibrium are 2,1 and 2 moles respectively, under a total pressure of 15 atm.The Kp of the reaction is

The numbers of unit cells present in 5.85mg of NaCl crystal are

Calculate the hydrolysis constant of a salt of a weak acid(K_a=2x10^-6) and of a weak base(K_b=5x10^-7)

The copper metal is mainly extracted from its

The hydronium ion concentration of a solution is 1X10^-4 M at 25⁰ C.The hydroxide ion concentration in the same solution is