Chemistry: What is pH ; How to Calculate pH (3 examples) | Homework Tutor
Chemistry: What is pH ; How to Calculate pH (3 examples)
pH is a way to measure the relative strengths of acids and bases. We start this video with a quick review of the definition of acid and base, consider whether water is an acid or a base, and then work 3 examples of using the equation for pH. Make sure to watch to the end so you can see the surprising pH of some of our everyday liquids!
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You can click on the links below to jump to sections in the lesson:
0:01 What is pH?
0:12 Arrhenius definition of an acid - aqueous solutions
1:19 The pH scale
0:42 Bronsted-Lowry definition - doesn't have to be aqueous
1:45 The equation to calculate pH
2:11 Is water an acid or a base?
3:43 The pH scale (0-14)
4:47 pH is a negative logarithmic scale
5:29 Example 1 - lemon juice
6:37 Example 2 - laundry detergent
7:34 Example 3 - soda
8:04 The pH of common liquids
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What to Watch Next:
pH of Household Liquids: http://bit.ly/2AlUaUs
Stoichiometry part 1 http://bit.ly/1NSCApt
Stoichiometry part 2: http://bit.ly/1YalMhx
What is a Mole? Avogadro's Number: http://bit.ly/2laJh0S
Molar Mass: http://bit.ly/2pNfg8L
Scientific Notation: http://bit.ly/2cv6yTw
Significant Figures: http://bit.ly/2b1g3aJ
Unit Conversion 1: http://bit.ly/1YGOQgw
Unit Conversion 2: http://bit.ly/1RGbwZ1
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We recommend the following books:
Brown and LeMay Chemistry: The Central Science
13th edition: http://amzn.to/2n5SXtB
14th edition: http://amzn.to/2mHk79f
McGraw/Hill Chemistry by Chang & Goldsby http://amzn.to/2mO2khf
Uncle Tungsten: Memories of a Chemical Boyhood by Oliver Sacks http://amzn.to/2nlaJp0
Napoleon's Buttons: How 17 Molecules Changed History http://amzn.to/2lJZzO3
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Written and Produced by Kimberly Hatch Harrison
About our instructor:
Kimberly Hatch Harrison received degrees in Biology and English Literature from Caltech before working in pharmaceuticals research, developing drugs for autoimmune disorders. She then continued her studies in Molecular Biology (focusing on Immunology and Neurobiology) at Princeton University, where she began teaching as a graduate student. Her success in teaching convinced her to leave the glamorous world of biology research and turn to teaching full-time. Kimberly taught AP Biology and Chemistry at an exclusive prep school for eight years. She is now the head writer and producer of Socratica Studios.
Products in this video:
Litmus pH Test Strips, Universal Application (pH 1-14), 2 Packs of 100 Strips - http://amzn.to/2fM8rLo
