can you help me with this write the correct significant figure and standard form
Calculate the pH of each aqueous solution.
Note: Reference the Fundamental constants table for additional information.
Part 1 of 2
0.000035 M HNO3. Be sure your answer has the correct number of significant figures.
pH =
Standard form
0.0000072 M KOH. Be sure your answer has the correct number of significant figures.
pH =
For the first solution:
pH = -log[H+] = -log(3.5 x 10^-5) = 4.46 (2 significant figures)
For the second solution:
pH = -log[H+] = -log(7.2 x 10^-6) = 5.14 (2 significant figures)