Answer:
pH = 4.45
Explanation:
pH is negative logarithm of the hydrogen ion concentration.
Given, hydronium ion concentration = 3.6 x 10⁻⁵
pH = - log[H₃O⁺] = - log(3.6 x 10⁻⁵) = 4.45
A pH below 7.0 means the solution is acidic. Neutral pH is at 7.0. For pH above 7.0 the solution is basic.
