The aqueous solution having pH , 11 is how ma | vedclass

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(D) The $pH$ of a solution is defined as $pH = -\log[H^+]$.For a solution with $pH \, 8$,the concentration of hydrogen ions is $[H^+]_1 = 10^{-8} \, M

Vedclass · Accepted Answer

$1000$

Vedclass · Answer

(D) The $pH$ of a solution is defined as $pH = -\log[H^+]$.For a solution with $pH \, 8$,the concentration of hydrogen ions is $[H^+]_1 = 10^{-8} \, M$.For a solution with $pH \, 11$,the concentration of hydrogen ions is $[H^+]_2 = 10^{-11} \, M$.Since $pH + pOH = 14$ at $25^{\circ}C$,the $pOH$ values are:For $pH \, 8$,$pOH = 14 - 8 = 6$,so $[OH^-]_1 = 10^{-6} \, M$.For $pH \, 11$,$pOH = 14 - 11 = 3$,so $[OH^-]_2 = 10^{-3} \, M$.The ratio of basicity is the ratio of hydroxide ion concentrations: $\frac{[OH^-]_2}{[OH^-]_1} = \frac{10^{-3}}{10^{-6}} = 10^3 = 1000$.Therefore,the solution with $pH \, 11$ is $1000$ times more basic than the solution with $pH \, 8$.

Column $(A)$	Column $(B)$
$(a)$ Lactic acid	$(i)$ Tomato
$(b)$ Acetic acid	$(ii)$ Lemon
$(c)$ Citric acid	$(iii)$ Vinegar
$(d)$ Oxalic acid	$(iv)$ Curd

The aqueous solution having $pH \, 11$ is how many times more basic than an aqueous solution having $pH \, 8$?

Similar Questions

Match the acids given in Column $(A)$ with their correct source given in Column $(B)$.
Column $(A)$ Column $(B)$
$(a)$ Lactic acid $(i)$ Tomato
$(b)$ Acetic acid $(ii)$ Lemon
$(c)$ Citric acid $(iii)$ Vinegar
$(d)$ Oxalic acid $(iv)$ Curd

Mention the range of $pH$ value for identification of a base.

Which of the following is not an oxide of metal?

The Bronsted-Lowry acid-base theory was based on which of the following?

$A$ metal $M$ forms an oxide with the formula $M_{2}O_{3}$. It dissolves in both dilute sulphuric acid and dilute sodium hydroxide solution. Identify the metal and write the chemical equations for the reactions involved.

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