'Ph log' presentation slideshows

ACIDS & BASES-

ACIDS & BASES-. ACIDS & BASES-. Electrolytes: Liquid that allows electricity to flow. Dissociation: Electrolytes break down into ions that conduct electricity. ACIDS & BASES REVIEW. Acids turn Litmus Red. Acids have a pH below 7. Acids are clear in Phenolphthalein.

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Ionic Equilibria I ???? : Acids and Bases

18. ??? C Ascorbic acid. Ionic Equilibria I ???? : Acids and Bases. ??? Citric acid. Chapter Goals. A Review of Strong Electrolytes ( ???? ) The Autoionization of Water ( ??????? ) The pH and pOH Scales (pH ?? pOH ? )

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The Chemistry of Acids and Bases

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The Chemistry of Acids and Bases

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Chapter 14 Acid/Base Equilibrium

AP Chemistry Unit 10. Chapter 14 Acid/Base Equilibrium. 1. Some Definitions. Arrhenius An acid is a substance that, when dissolved in water, increases the concentration of hydrogen ions. A base is a substance that, when dissolved in water, increases the concentration of hydroxide ions.

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Acids and Bases Chapter 19

Acids and Bases Chapter 19. Some Properties of Acids. Produce H + (as H 3 O + ) ions in water (the hydronium ion is a hydrogen ion attached to a water molecule-this ion determines pH) Taste sour (like vinegar) Corrode metals Electrolytes React with bases to form a salt and water

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Ch. 16: Equilibrium in Acid-Base Systems

Ch. 16: Equilibrium in Acid-Base Systems. 16.3a: Acid-Base strength and equilibrium law. Definitions. Arrhenius A: produce H+ in aqueous solution B: produces OH- in aqueous solution very limited Bronsted-Lowry A: H+ donor B: H+ acceptor more general. Acid ionization constant.

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Intro to Acids & Bases

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Acid and Base Strength

Acid and Base Strength. Acids. Have a sour taste. Acids. Turn blue litmus red. Turn methyl orange red. Acids. Will react with: some metals to produce a salt and H 2 . metal oxides to produce a salt and H 2 O. metal carbonates to produce a salt, H 2 O, and CO 2.

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Chemical Reactions 2: Equilibrium & Oxidation-Reduction

Chemical Reactions 2: Equilibrium & Oxidation-Reduction. Acid-Base Equilibrium. Acids Fruit juices, soft drinks, gastric juices Sour taste Red and blue litmus paper turn Red Arrhenius: acids release H + when dissolved in Water (aqueous solution)

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Hydrogen Ions and Acidity

Hydrogen Ions and Acidity. The Ionization of Water and pH. Hydrogen Ions in Water. We are used to thinking of water as a pure liquid that contains only H 2 O molecules. However, as a pure liquid, water ionizes into hydrogen ions and hydroxide ions: H 2 O( l ) ? H + ( aq ) + OH - ( aq )

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Ch. 16: Equilibrium in Acid-Base Systems

Ch. 16: Equilibrium in Acid-Base Systems. 16.3a: Acid-Base strength and equilibrium law. Definitions. Arrhenius A: produce H + in aqueous solution B: produces OH - in aqueous solution very limited Bronsted -Lowry A: H + donor B: H + acceptor more general. Acid ionization constant.

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Lecture 2 Dr. Kumar Aid-base balance-Salivary Buffering

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Hydrogen Ions and Acidity

Hydrogen Ions and Acidity. The Ionization of Water and pH. Hydrogen Ions in Water. We are used to thinking of water as a pure liquid that contains only H 2 O molecules. However, as a pure liquid, water ionizes into hydrogen ions and hydroxide ions: H 2 O( l ) ? H + ( aq ) + OH - ( aq )

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Unit 3

Unit 3. Acids and Bases. Hydrogen ions and pH. Ion product constant of water (K w ) H 2 O ? H + + OH - In pure water : [H + ] = [OH - ] * [ ] are used to indicate concentration in mol/L K w = [H + ] [OH - ] = 1.0x10 -14

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Chemical calculations II

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Unit 6: pH Calculations

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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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Strong Acids

Strong Acids. Strong acids fully dissociate so: They are fully separated into their ions They are good conductors of electricity Are not in a state of equilibrium A 10x dilution results in pH increase of 1 React quickly as [H 3 O + ] is high Examples include: H 2 SO 4 , HNO 3 , HCl.

216 views • 10 slides