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Scientists use the pH scale to represent the level of acidity or alkalinity of a liquid. This is based on the molar concentration of hydrogen ions, [H+]. Since the values of [H+] vary over a large range, 1 × 100 mole per liter to 1 x 10-14 mole per liter (mol/L), a logarithmic scale is used to compute pH. The formula pH = -log[H*] represents the pH of a liquid as a function of its concentration of hydrogen ions, [H+]. The pH scale ranges from 0 to 14. Pure water is taken as neutral having a pH of 7. A pH less than 7 is acidic. A pH greater than 7 is alkaline (or basic). For Exercise, use the formula for pH. Round pH values to 1 decimal place. Lemon juice Wine Ammonia Bleach 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pH 100 10-2 10-4 10-7 10-10 10-12 10-14 [H+] Water Acidic Alkaline (neutral) Bleach and milk of magnesia are both bases. Their [H+] values are 2.0 x 10-13 mol/L and 4.1 x 10-10 mol/L, respectively. a. Find the pH for bleach. b. Find the pH for milk of magnesia. c. Which substance is more basic?

Scientists use the pH scale to represent the level of acidity or alkalinity of a liquid. This is based on the molar concentration of hydrogen ions, [H+]. Since the values of [H+] vary over a large range, 1 × 100 mole per liter to 1 x 10-14 mole per liter (mol/L), a logarithmic scale is used to compute pH. The formula pH = -log[H*] represents the pH of a liquid as a function of its concentration of hydrogen ions, [H+]. The pH scale ranges from 0 to 14. Pure water is taken as neutral having a pH of 7. A pH less than 7 is acidic. A pH greater than 7 is alkaline (or basic). For Exercise, use the formula for pH. Round pH values to 1 decimal place. Lemon juice Wine Ammonia Bleach 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pH 100 10-2 10-4 10-7 10-10 10-12 10-14 [H+] Water Acidic Alkaline (neutral) Bleach and milk of magnesia are both bases. Their [H+] values are 2.0 x 10-13 mol/L and 4.1 x 10-10 mol/L, respectively. a. Find the pH for bleach. b. Find the pH for milk of magnesia. c. Which substance is more basic?

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter8: Electron Configurations And Periodicity
Section: Chapter Questions
Problem 8.101QP
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Scientists use the pH scale to represent the level of acidity or alkalinity of a liquid. This is based on the molar concentration of hydrogen ions, [H+]. Since the values of [H+] vary over a large range, 1 × 100 mole per liter to 1 x 10-14 mole per liter (mol/L), a logarithmic scale is used to compute pH. The formula pH = -log[H*] represents the pH of a liquid as a function of its concentration of hydrogen ions, [H+]. The pH scale ranges from 0 to 14. Pure water is taken as neutral having a pH of 7. A pH less than 7 is acidic. A pH greater than 7 is alkaline (or basic). For Exercise, use the formula for pH. Round pH values to 1 decimal place. Lemon juice Wine Ammonia Bleach 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pH 100 10-2 10-4 10-7 10-10 10-12 10-14 [H+] Water Acidic Alkaline (neutral) Bleach and milk of magnesia are both bases. Their [H+] values are 2.0 x 10-13 mol/L and 4.1 x 10-10 mol/L, respectively. a. Find the pH for bleach. b. Find the pH for milk of magnesia. c. Which substance is more basic?
Transcribed Image Text:Scientists use the pH scale to represent the level of acidity or alkalinity of a liquid. This is based on the molar concentration of hydrogen ions, [H+]. Since the values of [H+] vary over a large range, 1 × 100 mole per liter to 1 x 10-14 mole per liter (mol/L), a logarithmic scale is used to compute pH. The formula pH = -log[H*] represents the pH of a liquid as a function of its concentration of hydrogen ions, [H+]. The pH scale ranges from 0 to 14. Pure water is taken as neutral having a pH of 7. A pH less than 7 is acidic. A pH greater than 7 is alkaline (or basic). For Exercise, use the formula for pH. Round pH values to 1 decimal place. Lemon juice Wine Ammonia Bleach 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pH 100 10-2 10-4 10-7 10-10 10-12 10-14 [H+] Water Acidic Alkaline (neutral) Bleach and milk of magnesia are both bases. Their [H+] values are 2.0 x 10-13 mol/L and 4.1 x 10-10 mol/L, respectively. a. Find the pH for bleach. b. Find the pH for milk of magnesia. c. Which substance is more basic?
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