The concentration of hydrogen ion in a sample of soft drink is 3.8×10^-3M. Calculate it's pH.
pH = -log(H^+)
11.4
To calculate the pH of a solution based on the concentration of hydrogen ions (H+), you can use the formula:
pH = -log[H+]
In this case, the concentration of hydrogen ions ([H+]) in the soft drink sample is given as 3.8×10^-3M.
To calculate the pH, substitute the value of [H+] into the formula:
pH = -log(3.8×10^-3)
To evaluate this, you can use a scientific calculator or perform the calculation step by step:
1. Enter the value of 3.8×10^-3 into your calculator.
2. Press the log button or use the log function.
3. Negate the result by multiplying it by -1.
4. Write down the final answer.
The pH value you obtain is the solution to the problem and represents the measure of acidity or alkalinity of the soft drink sample.