Question

Please help A solution has a hydrogen ion (or hydronium ion) concentration of 3.43 * 10^-5What is the pH of the solution? Round to one decimal place.

Answer 1

The pH tells us how acidic or basic a substance is. Its value depends on the concentration of hydrogen ions, the pH equation is defined as:

$pH=-log{}\lbrack H^+\rbrack$

Where,

H+ is the concentration of hydrogen ions

So to find the pH we must substitute the concentration of H+ ions into the equation:

$\begin{gathered} pH=-log\lbrack3.43\times10^{-5}\rbrack \\ pH=4.46 \end{gathered}$

Answer: The pH of the solution will be 4.5