A sample of orange juice has a pH of 3.44. Its [H3O+] is
pH = -log(H3O^+)
To determine the value of [H3O+], we need to use the equation:
pH = -log[H3O+]
Let's calculate it step-by-step.
Step 1: Convert the pH to the equation form.
pH = 3.44
Step 2: Use the equation to find the value of [H3O+].
[H3O+] = 10^(-pH)
[H3O+] = 10^(-3.44)
[H3O+] ≈ 3.41 x 10^(-4) mol/L
So, the approximate value of [H3O+] in the orange juice is 3.41 x 10^(-4) mol/L.
To calculate the [H3O+] concentration, we need to use the pH value. The pH is a measure of the acidity or alkalinity of a solution and is defined as the negative logarithm of the concentration of hydronium ions ([H3O+]) in the solution.
The formula to calculate [H3O+] from pH is:
[H3O+] = 10^(-pH)
In this case, the given pH of orange juice is 3.44. Plugging this value into the formula:
[H3O+] = 10^(-3.44)
To evaluate this expression, you can follow these steps using a scientific calculator:
1. Enter "-3.44"
2. Press the "10^x" or "10^" button (this might be labeled differently depending on the calculator)
3. Calculate the result
The final result will give you the concentration of hydronium ions ([H3O+]) in the orange juice sample.