What is the concentration of hydronium ions in a solution at 25 c with ph 4.282?

PH scale is used to determine how acidic or basic a solution is.

pH can be calculated as follows

pH = - log [H₃O⁺]

since pH is known we can calculate [H₃O⁺]

[H₃O⁺] = antilog (-pH)

pH = 4.282

[H₃O⁺] = - antilog (-4.282)

[H₃O⁺] = 5.22 x 10⁻⁵ M

concentration of hydronium ions is 5.22 x 10⁻⁵ M