Acid Graph 1 Copyright © 2026 Pearson Education, Inc. Acid Graph A logarithm is used to represent the pH of an acid. pH is a measure of acidity. A higher concentration of hydrogen ions makes a solution more acidic. pH can be calculated using the negative logarithm of the concentration of hydrogen ions: pH = –log[H+] [H+] is the concentration of hydrogen ions in moles per liter. 1. Which graph correctly shows the pH scale based on the equation pH = –log[H+]? For each graph that is not correct, explain why it is incorrect. A B C D
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