Understanding pH
* pH is a measure of the acidity or alkalinity of a solution.
* It's calculated using the formula: pH = -log[H3O+]
Calculation
1. Identify the hydronium ion concentration: You've provided [H3O+] = 7.4 x 10^-9 M.
2. Apply the pH formula:
pH = -log(7.4 x 10^-9)
3. Use a calculator to solve:
pH ≈ 8.13
Conclusion
The pH of the cleaning solution is approximately 8.13. This indicates the solution is slightly alkaline (basic).
