Calculate the pH from each H3O" concentration. Part 1 of 2 H30 *= 9.20x10-2 M. Be sure your answer has the correct number of significant figures. pH = 10 X 5 Part 2 of 2 H30+ = 0.040 M. Be sure your answer has the correct number of significant figures. nH=
Part 1:
pH = -log(9.20x10^-2) = -log(0.092) = 1.04
Therefore, the pH for H3O+ concentration of 9.20x10^-2 M is 1.0.
Part 2:
pH = -log(0.040) = 1.40
Therefore, the pH for H3O+ concentration of 0.040 M is 1.4.