Heat of neutralisation of weak acid and strong base is less than the heat of neutralisation of strong acid and strong base due to
Energy has to be spent for the total dissociation of weak acid
Salt of weak acid and strong base is not stable
Incomplete dissociation of weak acid
Incomplete neutralisation of weak acid
A $0.1\, M$ solution of $HF$ is $1\%$ ionized. What is the $K_a$
What is $[{H^ + }]$ of a solution that is $0.01\,M$ in $HCN$ and $0.02\,M$ in $NaCN$ $({K_a}$for $HCN = 6.2 \times {10^{ - 10}})$
The ionization constant of propanoic acid is $1.32 \times 10^{-5}$. Calculate the degree of ionization of the acid in its $0.05\, M$ solution and also its $pH$. What will be its degree of ionization if the solution is $0.01$ $M$ in $HCl$ also?
Derive the equation of ionization constants ${K_a}$ of weak acids $HX$.
The first ionization constant of $H _{2} S$ is $9.1 \times 10^{-8}$. Calculate the concentration of $HS ^{-}$ 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 of $H _{2} S$ is $1.2 \times 10^{-13}$, calculate the concentration of $S^{2-}$ under both conditions.