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

What is the $pH$ of a solution containing $4.62 \times 10^{-4} \ M \ H^{+}$ ions?

The $pH$ of $10^{-7} \ M \ NaOH$ is

What is the $pH$ of $0.005 \ M \ NaOH$ solution?

At $298 \, K$,what is the concentration of hydrogen ions in a $10^{-8} \, M \, HCl$ aqueous solution? $(K_W = 10^{-14})$

Vedclass Test Series

Exam Paper Generator

Online Exam Module