Question

The pH and pOH scales represent concentrations of [H3O+] and [OH−], respectively. What are the hydronium ion concentration and the hydroxide ion concentration of pure water at 25 °C?

Answer 1

The hydronium ion concentration and the hydroxide ion concentration of pure water at 25 °C are both equal to 1.0 x 10^-7 M. The pH of pure water is 7, indicating a neutral solution. The pOH of pure water is also 7, reflecting the equal concentration of hydroxide ions.

Step-by-step explanation:

The hydronium ion concentration and the hydroxide ion concentration of pure water at 25 °C are both equal to 1.0 x 10-7 M. This is because pure water is neutral, meaning it contains an equal concentration of hydronium (H3O+) and hydroxide (OH-) ions. The pH of pure water is 7, which indicates a neutral solution on the pH scale. Similarly, the pOH of pure water is also 7, reflecting the equal concentration of hydroxide ions.