can you help me with this
Calculate the pH from each H3O" concentration.
Part 1 of 2
[H30+ = 4.5 x 10^-4
pH =
M. Be sure your answer has the correct number of significant figures.
pH = -log(4.5 x 10^-4)
pH = -log(4.5) + log(10^-4)
pH = -log(4.5) - 4
pH ≈ -0.653 - 4
pH ≈ -4.653
Since the given H3O+ concentration has two significant figures, the pH should also be expressed with two significant figures. Therefore, the pH is approximately -4.7.