can you help me with this write the correct significant figure and standard form Calculate the pH from each H3O" concentration. Part 1 of 2 H3O+7 pH = -4 =3.9x10 M. Be sure your answer has the correct number of significant figures.information.

To calculate the pH from the given H3O+ concentration, first determine the exponent of the concentration.

Given: H3O+ concentration = 3.9x10^-7 M

To find the pH, use the formula: pH = -log[H3O+]

pH = -log(3.9x10^-7)
pH = -(-6.41)
pH = 6.41

Therefore, the correct significant figure for the pH is 3, and the standard form of the concentration is 3.9x10^-7 M.