The pH value of which one of the following is | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) For a solution to have $pH = 1$,the concentration of $[H^+]$ must be $0.1 \ M$.$(A)$ $0.1 \ M \ CH_3COOH$ is a weak acid and does not dissociate c

Vedclass · Accepted Answer

$0.1 \ M \ CH_3COOH$

Vedclass · Answer

(A) For a solution to have $pH = 1$,the concentration of $[H^+]$ must be $0.1 \ M$.$(A)$ $0.1 \ M \ CH_3COOH$ is a weak acid and does not dissociate completely,so $[H^+]  1$.$(B)$ $0.1 \ M \ HNO_3$ is a strong acid,$[H^+] = 0.1 \ M$,so $pH = -\log(0.1) = 1$.$(C)$ $0.05 \ M \ H_2SO_4$ is a strong acid,$[H^+] = 2 	imes 0.05 = 0.1 \ M$,so $pH = -\log(0.1) = 1$.$(D)$ For the mixture: $n(H^+) = 50 	imes 0.4 = 20 \ mmol$,$n(OH^-) = 50 	imes 0.2 = 10 \ mmol$. Remaining $n(H^+) = 20 - 10 = 10 \ mmol$. Total volume = $100 \ cm^3$. $[H^+] = 10 / 100 = 0.1 \ M$,so $pH = 1$.

The $pH$ value of which one of the following is not equal to $1$?

Similar Questions

If a solution of $10^{-6} \ M \ HCl$ is diluted $100$ times,the $pH$ of the solution is:

$L$ litres of water must be added to $1 \, L$ of an aqueous solution of $HCl$ with a $pH$ of $1$ to create an aqueous solution with $pH$ of $2$?

What will be the $pH$ of a $10^{-8} \ M$ solution of $HCl$?

Select the correct option that has the same $pH$ value.
$(1) 0.005 \, M \, H_2SO_4$
$(2) 0.1 \, M \, Na_2SO_4$
$(3) 10^{-2} \, M \, NaOH$
$(4) 0.01 \, M \, HCl$

$200 \ mL$ of an aqueous solution of $HCl$ $(pH=2)$ is mixed with $300 \ mL$ of aqueous solution of $NaOH$ $(pH=12)$ and is diluted to $1.0 \ L$. The $pH$ of the resulting solution is

Vedclass Test Series

Exam Paper Generator

Online Exam Module