Find the approximate hydrogen ion concentration [H+] for each of the following. (a) Apples: pH = 3.0
Question:
(a) Apples: pH = 3.0
(b) Eggs: pH = 7.79
(c) Water (neutral): pH = 7.0
Use the following information. Chemists use the pH (hydrogen potential) of a solution to measure its acidity or basicity. The pH is given by the formula
pH = - log[H+]
where [H+] is the concentration of hydrogen ions in moles per liter.
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Related Book For
Mathematical Applications for the Management Life and Social Sciences
ISBN: 978-1305108042
11th edition
Authors: Ronald J. Harshbarger, James J. Reynolds
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A substance that alters color in solution over a constrained range of pH values is known as a pH indicator or acid-base indicator. The indicator chemical just needs to alter color slightly in order to be noticed. Indicators work on the basis that they react with water to produce the hydrogen cation H+ or hydronium ion H3O+. The indicator molecule\\\'s color changes as a result of the reaction. Since indicators have distinct color ranges for color change, they can occasionally be combined to provide color changes over a wider pH range.
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