Intermediate Algebra – Student Workbook – Second Edition 2013

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$Lesson 2a – Assessment - Scottsdale Community College - Math Blog$

Lesson 4a – Introduction to Logarithms Practice Problems 6. In Chemistry, the pH of a substance can be determined using the formula pH = –log[H + ] where H+ is the hydrogen ion concentration of the substance. Solutions with a pH less than 7 are said to be acidic and solutions with a pH greater than 7 are basic or alkaline. The table below presents the pH values of some common substances. pH Level Substance a) Determine the hydrogen ion (H+) concentration of distilled water. 13 Bleach 12 Soapy Water 11 Ammonia Solution 10 Milk of Magnesia b) Determine the hydrogen ion (H+) concentration of black coffee. 9 Baking Soda 8 Sea Water 7 Distilled Water 6 Urine c) If the water in your swimming pool has a hydrogen ion concentration of .000001 what would the pH level be? (Just for fun, should you be concerned?) 5 Black Coffee 4 Tomato Juice 3 Orange Juice 2 Lemon Juice 1 Gastric Acid d) The hydrogen ion concentration of lemon juice is ___________________ times greater than the hydrogen ion concentration of orange juice. e) Challenge: The hydrogen ion concentration of Gastric acid is ___________________ times greater than the hydrogen ion concentration of Tomato juice. Scottsdale Community College Page 158 Intermediate Algebra
Name: _____________________ Date: ________________ Lesson 4a Assessment 1. Complete the table below. Exponential Form Logarithmic Form 9 2 81 8 3 1 512 9 3 log 4 16 2 log1000 3 3. Evaluate each of the following logarithms. a) log5 1=___________ b) log 7 7 =___________ 1 c) 3 log 3 = ___________ d) 64 log 8 = ___________ 1 e) log 5 = ___________ f) log 3 10 =___________ 25 Scottsdale Community College Page 159 Intermediate Algebra
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Scottsdale Community College Interm
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Table of Contents Lesson 1a - Intro
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Lesson 1a - Introduction to Functio
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Lesson 1b - Linear Equations In the
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Lesson 3a - Introduction to Exponen
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Lesson 6a - Exponents and Rational
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Lesson 6b - Rational Exponents & Ra
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Lesson 6b - Rational Exponents and
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Appendix A: You Try Answers Lesson
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Appendix A: You Try Answers You Try
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Intermediate Algebra – Student Workbook – Second Edition 2013

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