'Poh scale' presentation slideshows

Acids & Bases

Acids & Bases. Unit 13. Overview. Acid/base properties Definitions Arrhenius Bronsted-Lowry Lewis Acid-Base Reactions Neutralization Sulfides Carbonates pH/ pOH Scale Acid/base strength Factor affecting K a , K b , K w Percent ionization. Vocabulary Polyprotic Acids

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Acids & Bases

Acids & Bases. Unit 13. Overview. Acid/base properties Definitions Arrhenius Bronsted-Lowry Lewis Acid-Base Reactions Neutralization Sulfides Carbonates pH/ pOH Scale Acid/base strength Factor affecting K a , K b , K w Percent ionization. Vocabulary Polyprotic Acids

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Schedule

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Acids, Bases, and Salts

Acids, Bases, and Salts. Electrolytes. An electrolyte is a substance that dissociates when dissolved in water. ( Nonelectrolytes do not dissociate.) These compounds conduct electricity based on this dissociation. To dissociate means to separate into ions in solution.

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Acid/Base Chemistry Part 3 (5.4-5.5)

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ACIDS AND BASES

ACIDS AND BASES. CHEMISTRY CHAPTER 12. 12.1 Acids and Bases: Introduction A. All aqueous solutions contain hydrogen ions (H + ) and hydroxide (OH-). 1. An acidic solution contains more (H + ) ions than (OH - ) ions.

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ACIDS AND BASES

ACIDS AND BASES. Chapter 15. Bronsted Lowry Acids and Bases. An acid is a proton donor and a base is a proton acceptor. The loss of a proton is called as deprotonation: HCl(aq)+ H 2 O(l) ?H 3 O + (aq) +Cl - (aq) A strong acid is fully ionized in water.

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Chemistry Notes

Chemistry Notes. pH and [H + ]. pH and [H + ]. Working with the Arrhenius acid definition, we say that acids produce hydrogen ions: HX a H + + X - And bases produce hydroxide ions: XOH a X + + OH -. Water, being made up of both H + and OH - can dissociate giving us the formula:

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The definitions of acids and bases have changed over time.

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Definitions and Formulas

pH. Definitions and Formulas. The pH scale is defined as the negative log of the concentration of H + : pH = -log[H + ] The pOH scale is defined as the negative log of the concentration of OH - , [OH - ]. pOH = -log[OH - ]

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The pH and pOH scales

The pH and pOH scales. pH scale. Measures the amount of H + in a solution. Scale used to measure whether a substance is an acid or a base. Lower numbers are acids. Higher numbers are bases. Examples. Which of the following pH values represents the strongest acid? A) 12.0 B) 9.0

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The pH and pOH scales

The pH and pOH scales. pH scale. Measures the amount of H + in a solution. Scale used to measure whether a substance is an acid or a base. Lower numbers are acids. Higher numbers are bases. Examples. Which of the following pH values represents the strongest acid? A) 12.0 B) 9.0

199 views • 4 slides