Which of the following will occur if a $0.1 \,M$ solution of a weak acid is diluted to $0.01\,M$ at constant temperature
$[{H^ + }]$ will decrease to $0.01 \,M$
$pH$ will decrease
Percentage ionization will increase
Both $(b)$ and $(c)$
Calculate $\left[ {{S^{ - 2}}} \right]$ and $\left[ {H{S^{ - 2}}} \right]$ of the solution which contain$0.1$ $M$ ${H_2}S$ and $0.3$ $M$ $HCl$.
[ ${H_2}S$ of ${K_a}\left( 1 \right) = 1.0 \times {10^{ - 7}}$ and ${K_a}\left( 2 \right) = 1.3 \times {10^{ - 13}}$ ]
For a weak acid $HA,$ Ostwald's dilution law is represented by the equation
A weak acid $HA$ has a $K_a$ of $1.00 \times 10^{-5} $. If $0.100\,mol$ of this acid is dissolved in one litre of water the percentage of acid dissociated at equilibrium is closest to.....$\%$
A solution of sodium borate has a $pH$ of approximately
Write examples of weak acids and weak bases and give ionic equilibrium in its aqueous solution.