A solution has a hydrogen ion (or hydronium) concentration of 3.16 X 10-8 M. What is the pH of the solution?
7.5
8.5 <my choice
8.0
7.0
It’s 7.5
no
To find the pH of a solution, you can use the formula:
pH = -log[H+]
Given that the hydrogen ion concentration is 3.16 x 10^-8 M, we can simply plug this value into the formula to find the pH:
pH = -log(3.16 x 10^-8)
Using a calculator, the negative logarithm of 3.16 x 10^-8 is approximately 7.5.
Therefore, the correct answer is 7.5.
To find the pH of a solution given the hydrogen ion concentration, you can use the formula:
pH = -log[H+]
In this case, the hydrogen ion concentration is 3.16 x 10^-8 M. To calculate the pH, you need to take the negative logarithm of the hydrogen ion concentration.
First, take the logarithm of the hydrogen ion concentration:
log(3.16 x 10^-8) = -7.5
Then, take the negative of this value to find the pH:
pH = -(-7.5) = 7.5
Therefore, the correct answer is 7.5, not 8.5 as you initially guessed.