Question

in SHE , the pH of acid solution should be 1) 7 2) 14 3) 0

Answer 1

Answer: 3rd option.

Explanation:

pH = -log[H+]

in SHE the concentration of H+ ion is 1 M

​pH = -log[1M]

= 0

So the correct option is 3

Answer 2

In SHE, the pH of acid solution should be 0.

Explanation:

Here, the Standard Hydrogen Electrodes (SHE) could usually uses 1 M of HCL for the provided acid. It can be represented as,

$\mathrm{Pt} / \mathrm{H}_{2}(\mathrm{g}) 1 \mathrm{atm} / 1 \mathrm{M} \mathrm{HCl} / /$

The pH of this 1 M HCl equals 0. Thus, the pH of the acidic solution in SHE will be zero.  

I.e., pH = -log[H+]

pH =-log [1M] = 0

However, sometimes various concentrations of HCl can be used. But the most commonly used concentration is 1 M.

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