what is the ph of a solution that has [H] = 0.0045
can you show steps pls
I got - log (0.0045) = 4.75
pH = -log(H^+)
pH = -log(0.0045)
pH = -(-2.347) = 2.35
To find the pH of a solution with a given hydrogen ion concentration ([H]), you can use the formula:
pH = -log[H]
To determine the pH using the given [H] = 0.0045, follow these steps:
Step 1: Plug in the given value into the formula:
pH = -log(0.0045)
Step 2: Use a calculator to evaluate the logarithm:
pH ≈ -log(0.0045) ≈ -(-2.35) ≈ 2.35
Step 3: Round off the answer to two decimal places, as pH is typically expressed to two decimal places:
pH ≈ 2.35
Therefore, the pH of the solution with [H] = 0.0045 is approximately 2.35.