Which of the following contains a coordinate covalent bond ?
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 2nd 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(Ka=2x10-6) and of a weak base(Kb=5x10-7)
The copper metal is mainly extracted from its