what is the hydronium ion concentration of a solution whose ph is 4.12?
Chemistry · High School · Sun Jan 24 2021
Answered on
The pH of a solution is a measure of its acidity or alkalinity and is defined as the negative logarithm (base 10) of the hydronium ion concentration (\( [\text{H}_3\text{O}^+] \)). The formula to calculate the hydronium ion concentration from the pH is:
\[ [\text{H}_3\text{O}^+] = 10^{-\text{pH}} \]
In this case, the pH is 4.12. Plugging this value into the formula:
\[ [\text{H}_3\text{O}^+] = 10^{-4.12} \]
Calculating this expression will give you the hydronium ion concentration. Let's do the math:
\[ [\text{H}_3\text{O}^+] = 10^{-4.12} \approx 7.08 \times 10^{-5} \, \text{M} \]
So, the hydronium ion concentration of a solution with a pH of 4.12 is approximately \(7.08 \times 10^{-5}\) M.