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DAILY QUESTION November 21, 2008

DAILY QUESTION November 21, 2008. What is pH?. Agenda 11/21/08. Daily Question Ch 8 Section 1 Notes pH Brain Pop! pH Assignments: 1. 8-1 Review Worksheet due 11/24. pH. The pH of a solution indicates its concentration of hydronium (H 3 O + ) ions

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DAILY QUESTION November 21, 2008

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  1. DAILY QUESTION November 21, 2008 • What is pH?

  2. Agenda 11/21/08 • Daily Question • Ch 8 Section 1 Notes • pH • Brain Pop! pH Assignments: 1. 8-1 Review Worksheet due 11/24

  3. pH • The pH of a solution indicates its concentration of hydronium (H3O+) ions • The pH of a solution is often critical • Also indicates hydroxide (OH-) ion concentration

  4. pH Value • Tells if a solution is neutral, acidic, or basic • Range from: 0 to 14 • Neutral: 7. • Means concentration of H3O+ = concentration of OH- • Acidic: Less than 7 • concentration of H3O+ is greater than concentration of OH- • Basic: More than 7 • concentration of OH- is greater than concentration of H3O+

  5. pH • Small differences in pH mean larger differences in acidity • Apple juice is 100 times more acidic than coffee

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