L 03 विलयन की सान्द्रता Solution and Its concentration ||Chap 01 | Class 11th || in Hindi || VHC

The first ionization constant of H_(2)S is 9.1xx10^(-8) . Calculate the concentration of HS^(Θ) ion in its 0.1 M solution. How will this concentration be affected if the solution is 0.1 M in HCl also? If the second dissociation constant if H_(2)S is 1.2xx10^(-13) , calculate the concentration of S^(2-) under both conditions.

For the reaction A(aq)hArrB(aq)+2C(aq) K_C at 25^@ is 4xx10^(-19) Concentration of B in a solution that had originally C and B concentration of 0.1 M and 0.03 M respectively is :

When 1 L of 0.1 M sulphuric acid solution is allowed to react with 1 L of 0.1 M sodium hydroxide solution, the amount of sodium sulphate (anhydrous) that can be obtained from the solution fromed and the concentration of H^(+) in the solution respectively are :

pH of solutions of four sodium salts NaW, NaX, NaX, NaY and NaZ were found to be 7.0, 9.0, 10.0 and 11.0 respectively. If each solution has concentration 0.1 M, the weakest acid is :

A substance ''A'' decomposes in solution following the first order kinetics. Flask I contains L of 1 M solution of A and falsk II constains 100 mL of 0.6 M solution. After 8 hr , the concentration, of A in flask I becomes 0.25 M . What will be the time for concentration of A in flask II to become 0.3 M ?

The emf of a cell formed by dipping two electrons of metal (M) in two solution of its salt in which the concentration of metal ion (M^(n+) is 0.1 M and 0.001 M was observed to be 0.03 volt at 25^(@)C . What is the valency of the metal ion if the two half cells are connected using salt bridge? [Given: 2.303 (RT)/F = 0.06]