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Concept explainers
The pH scale is used to measure the acidity or alkalinity of a solution. The scale ranges from 0 to 14. A neutral solution, such as pure miter, has a pH of 7. An acid solution has a pH less than 7 and an alkaline solution has a pH greater than 7. The lower the pH below 7, the more acidic is the solution. Each whole-number decrease in pH represents a tenfold increase in acidity.
The pH of a solution is given by
a. The figure indicates that lemon juice has a pH of 23. What is the hydrogen ion concentration?
b. Stomach acid has a pH that ranges from 1 to 3. What is the hydrogen ion concentration of the most acidic stomach?
c. How many times greater is the hydrogen ion concentration of the acidic stomach in part (b) than the lemon juice in part (a)?
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Chapter 3 Solutions
EBK PRECALCULUS
- Which of the functions shown below is differentiable at z = 2? Select the correct answer below: о -7-6-5-4-3-2- −7 −6 −5 −4 −3-2 1 2 4 5 6 -7-6-5-4-3-2- -7-6-5-4-3 2 45arrow_forwardQuestion Given the graph of f(z) below, find the graph of the derivative of f(z). Select the correct answer below: ° ° 129 -7-6-5-4-3-2 -7-6-5-4-3-2-1123456 ° ° °arrow_forwardthe correct answer is A could you explain whyarrow_forward
- Find the given derivative. Dx 7x 1 6 2 이에arrow_forwardQuestion Consider the graph of f(x) below. Over what open interval is f'(x) positive? Give your answer in interval notation. Provide your answer below: 0arrow_forwardQuestion Find the open interval(s) of f(x), graph given below, where f'(x) is negative. -3-2-1 1 2 4 5 6 Give your answer in interval notation. For example, (2, 4) U (6,∞). Provide your answer below:arrow_forward
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