Answer: 1.46
Explanation:
pH is the negative logarithm of hydrogen ion concentration in a solution.
Thus, pH is expressed as pH = - log(H+)
HCl ---> H+ + Cl-
The acid ionizes to give hydrogen ion H+ as the only positive ion. Hence, the concentration of H+ is also 0.0345
So, pH = - log(0 .0345)
pH = -(-1.46)
pH = 1.46 (since the two minus signs will cancel out)
Thus, the pH of .0345 M HCl concentration is 1.46 (strongly acidic)
