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

(C) For $0.1 \ M \ HNO_3$,$[H^+] = 0.1 \ M$,so $pH = -\log(0.1) = 1$. For $0.05 \ M \ H_2SO_4$,$[H^+] = 2 	imes 0.05 = 0.1 \ M$,so $pH = -\log(0.1) =

Vedclass · Accepted Answer

$0.1 \ M \ CH_3COOH$

Vedclass · Answer

(C) For $0.1 \ M \ HNO_3$,$[H^+] = 0.1 \ M$,so $pH = -\log(0.1) = 1$. For $0.05 \ M \ H_2SO_4$,$[H^+] = 2 	imes 0.05 = 0.1 \ M$,so $pH = -\log(0.1) = 1$. For $0.1 \ M \ CH_3COOH$,it is a weak acid and does not ionize completely,so $[H^+]  1$. For the mixture,$n(HCl) = 0.05 \ L 	imes 0.4 \ M = 0.02 \ mol$ and $n(NaOH) = 0.05 \ L 	imes 0.2 \ M = 0.01 \ mol$. Remaining $n(HCl) = 0.02 - 0.01 = 0.01 \ mol$ in $100 \ mL$ $(0.1 \ L)$ solution. $[H^+] = 0.01 \ mol / 0.1 \ L = 0.1 \ M$,so $pH = -\log(0.1) = 1$. Thus,$0.1 \ M \ CH_3COOH$ does not have a $pH$ of $1$.

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

Similar Questions

A conducting square loop is placed in a magnetic field $B$ with its plane perpendicular to the field. The sides of the loop start shrinking at a constant rate $\alpha$. The induced emf in the loop at an instant when its side is ' $a$ ' is

$A$ cannon shell fired breaks into two equal parts at its highest point. One part retraces its path to the cannon with kinetic energy $E_1$,and the kinetic energy of the second part is $E_2$. The relation between $E_1$ and $E_2$ is:

The tissue that forms the supporting structure in our pinna (external ear) is also found in:

The principal value of ${\sin ^{ - 1}}\left( { - \frac{1}{2}} \right)$ is

The maximum tension a rope can withstand is $60 ~kg-wt$. The ratio of maximum acceleration with which two boys of masses $20 ~kg$ and $30 ~kg$ can climb up the rope at the same time is

Vedclass Test Series

Exam Paper Generator

Online Exam Module