'Nh 4 aq' diaporamas de présentation

CHAPTER 14

CHAPTER 14. THE CHEMISTRY OF ACIDS AND BASES. "ACID". Latin word acidus, meaning sour. (lemon). "ALKALI". Water solutions feel slippery and taste bitter (soap). ACID-BASE THEORIES. Arrhenius Definition. acid -- donates a hydrogen ion (H + ) in water

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CHAPTER 14

CHAPTER 14. THE CHEMISTRY OF ACIDS AND BASES. "ACID". Latin word acidus, meaning sour. (lemon). "ALKALI". Arabic word for the ashes that come from burning certain plants. Water solutions feel slippery and taste bitter (soap). Acids and bases are extremely

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ACIDS AND BASES 1.1.10

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Chapter 14

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Chapter 14

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Chapter 4. Aqueous reactions and Solution Chemistry.

Chapter 4. Aqueous reactions and Solution Chemistry. ? +. Chemical reactions in water are important, as the chemistry of life occurs in water, and chemical reactions in the environment occur mainly in water. ? -. ? +. partial charges on a water molecule.

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Acid and Base Equilibria

Acid and Base Equilibria. The concept of acidic and basic solutions is perhaps one of the most important topics in chemistry. Acids and bases affect the properties of foods, biochemical reactions, pharmaceuticals, and industrial materials. Acid and Base Equilibria. Properties of Acids

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Entropy and Free Energy (Kotz Ch 20) - Lecture #2

Entropy and Free Energy (Kotz Ch 20) - Lecture #2. Spontaneous vs. non-spontaneous thermodynamics vs. kinetics entropy = randomness (S o ). Gibbs free energy ( ?G o ) ?G o for reactions - predicting spontaneous direction thermodynamics of coupled reactions ?G rxn versus ?G o rxn

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Entropy and Free Energy (Kotz Ch 20) - Lecture #2

Entropy and Free Energy (Kotz Ch 20) - Lecture #2. Spontaneous vs. non-spontaneous thermodynamics vs. kinetics entropy = randomness (S o ). Gibbs free energy ( ?G o ) ?G o for reactions - predicting spontaneous direction thermodynamics of coupled reactions ?G rxn versus ?G o rxn

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Acid-Base chemistry

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28-3-2011

28-3-2011. Diprotic and Polyprotic Acids. Have more than one acidic proton. If the difference between the K a for the first dissociation and subsequent K a values is 10 3 or more, the pH generally depends only on the first dissociation. Species concentrations of diprotic acids.

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Acids and Bases: Salts

Acids and Bases: Salts. Determining whether Salt Solutions are Acids or Bases. Learning Goals. Students will be able: to determine whether salts form acids or bases when dissolved into solutions to determine the pH of salt solutions. Success Criteria.

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Acid-Base Equilibrium VCE Chemistry Unit 4: Chemistry at Work

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Acids and Bases

Acids and Bases. Unit Main Goals. Definitions (3) Properties Using pH Neutralization. Malic Acid. Acetic Acid. Citric Acid. Malic Acid. Carbonic Acid. Lactic Acid. Hydrochloric Acid. But, what are ACIDS?. Acid Properties.

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Reaction Rates and Stoichiometry

- ? [C 4 H 9 Cl] ? t. Rate =. =. ? [C 4 H 9 OH] ? t. Reaction Rates and Stoichiometry. C 4 H 9 Cl( aq ) + H 2 O( l ) ??? C 4 H 9 OH ( aq ) + HCl( aq ). In this reaction, the ratio of C 4 H 9 Cl to C 4 H 9 OH is 1:1 .

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Acid / Base

?. Acid / Base. Arrhenius definition. produces H + in water. acid. base. produces OH - in water. ?. ?. H +. + A -. HA. + H 2 O. K a = [ H + ] [A - ]. K a. strength of acid. [HA] [H 2 O]. [HA]. strong acids. no K a. weak acids. dissociate completely. equilibrium process.

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Aqueous Solutions

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10.5 Equilibria in Salt Solutions

10.5 Equilibria in Salt Solutions. LO: I understand how the pH of a salt solution comes about. weak. Sodium ethanoate is the salt of a acid and a base. strong. Sodium ethanoate completely splits into when dissolved in water:. ions. The pH of sodium ethanoate is. CH 3 COO - Na + (s).

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