Question

pH of a 0.1 M monobasic acid is found to be 2.Hence, its osmotic pressure at a given temperature T K is :

• A. 0.1RT
• B. 0.11RT
• C. 1.1RT
• D. 0.01RT

Answer 1

Answer: (B)

0.11RT

$pH=2$

$\left[H^{\oplus }\right]=0.01M=Cx=0.1x$

$x=0.1$

$i=1+x=1.1$

$\pi =i\frac{n}{V}RT=iMRT$

$=1.1\times 0.1RT=0.11RT$

So, the correct option is $B$