'Ph poh' diaporamas de présentation

Acid-Base Equilibria

Acid-Base Equilibria. Chapter 16. Equilibrium, Part II. Acids and Bases: A Brief Review (Ch 4). Acid tastes feels strong acid with [acid] > 1 dissolves protein detect: Base tastes feels strong base with [base] > 1 dissolves protein detect: Arrhenius definition

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Chapter 14 Acids and Bases

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Acids and Bases Chapter 15

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Acids Lesson 8 Application of Hydrolysis pH Calculations

Acids Lesson 8 Application of Hydrolysis pH Calculations. pH Equations You must know the following equations, which are all based on the ionization of water at 25 0 C ! H 2 O ? H + + OH - Kw = [H + ][ OH - ] = 1.00 x 10 -14 pH = -Log[H + ] pOH = -Log[OH - ]

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Acids Lesson 10 pH Calculations

Acids Lesson 10 pH Calculations. pH Equations You must know the following equations, which are all based on the ionization of water at 25 0 C ! H 2 O ? H + + OH - Kw = [H + ][ OH - ] = 1.00 x 10 -14 pH = -Log[H + ] pOH = -Log[OH - ] [H + ] = 10 -pH [OH - ] = 10 -pOH

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Unit 12: Acid and Bases

Unit 12: Acid and Bases. Chapter 19. 4 th Hour. I am gone today so you will go through this Powerpoint to get the notes for objective 38 and the beginning of 39. Remember, there is an open-note quiz tomorrow and I expect a good report from the sub.

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UNIT IV

UNIT IV. pH. Ionization of Water. Pure distilled water still has a small conductivity. Why? 2H 2 O (l) + 59kJ H 3 O + (aq) + OH - (aq). Ionization of Water.

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Unit 8: Acids & Bases

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pH Scale

pH Scale. Determines concentration (strength) of an acid or base. Acids below 7 Bases above 7. [http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter15/Text_Images/FG15_03.JPG]. pH Scale. Indicators show the pH level in the lab.

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4/15/2013 (periods 1,3, & 5) 4/16/2013 (periods 2 & 6) Standards : 5 (Acids and Bases )

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Unique properties of Water

Unique properties of Water. Can act as either an acid or a base Weak electrolyte so it is a poor conductor of electricity but does undergo ionization to a small extent: H 2 O (l) ? H + (aq) + OH - (aq) Above reaction called the autoionization of water Can also be expressed as:

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Calculating pH

Calculating pH. Strong Acids. The seven strong acids are HCl , HBr , HI, HNO 3 , H 2 SO 4 , HClO 3 , and HClO 4 . These are, by definition, strong electrolytes and exist totally as ions in aqueous solution. H 2 O ( l ) + H 2 O ( l ). H 3 O + ( aq ) + OH ? ( aq ).

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Modern Chemistry Chapter 15 Acid-Base Titration & pH

Modern Chemistry Chapter 15 Acid-Base Titration & pH. Section 1. self-ionization of water occurs when two water molecules produce a hydronium (H 3 O + ) and a hydroxide (OH - ) ion 2 H 2 O ? H 3 O + + OH -

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Pharmaceutical Analytical Chemistry 2 nd lecture Dr. Mona AlShehri

213 PHC. Pharmaceutical Analytical Chemistry 2 nd lecture Dr. Mona AlShehri. Acid-Base Equilibria (1). (1) Gary D. Christian, Analytical Chemistry, 6 th edition. By the end of this lecture, you should be able to:. Define the pH of a solution. Calculate the pH of strong acids.

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pH Calculations

pH Calculations. pH Equations You must know how to use the following equations, which are all based on the ionization of water at 25 0 C ! Kw =[H + ][ OH - ] = 1.00 x 10 -14 pH = -log[H + ] pOH = -log[OH - ] [H + ] = 10 -pH [OH - ] = 10 -pOH pH + pOH = 14.0.

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pH and pOH

pH and pOH. By: Sam F., Sam D., Rochani, Evan, Will, Sherry, Mariana . pH. Measure of the acidity or basicity of an aqueous solution Acid: 0 - 7 Base: 7 - 14 7 is neutral. pH Calculation. pH=-log [H+] Molarity of acid = [H+] Ex: .1 M HCl what is the pH? .001 M HBr what is the pH?.

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