'Bronsted' diaporamas de présentation

Acids and Bases

Acids and Bases. Acids & Bases. Water and acid combine in an exothermic reaction - releasing large amounts of heat. Water and acid combine in an exothermic reaction - releasing large amounts of heat. Acid - Base Theories. Lavoisier Arrhenius Bronsted-Lowry Lewis.

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CHEM160 General Chemistry II Lecture Presentation Aqueous Equilibria: Acids and Bases

CHEM160 General Chemistry II Lecture Presentation Aqueous Equilibria: Acids and Bases. Chapter 16. Dr. Daniel Autrey. Why study acids and bases? . Acids and bases are common in the everyday world as well as in the lab. Some common acidic products

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Chapter 15 Acids and Bases

Chemistry: A Molecular Approach , 1 st Ed. Nivaldo Tro. Chapter 15 Acids and Bases. ACIDS & BASES Acids: - acids are sour tasting - Arrhenius acid: Any substance that when dissolved in water, increases the concentration of hydronium ion (H 3 O + )

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Organic Chemistry:

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Protein purification is a multi-step process

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Acid-Base

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17 Acids and Bases

17 Acids and Bases. A group of chemical properties is related to acidity. According to these properties, a substance can be called an acid or a base . The word acid comes from Latin acere meaning sour. A base is an alkaline , which is derived from Arabic alqali .

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Unit 10: Acids and Bases

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Acids & Bases

Acids & Bases. Acids: acids are sour tasting Arrhenius acid : Any substance that, when dissolved in water, increases the concentration of hydronium ion (H 3 O + ) Bronsted-Lowry acid : A proton donor Lewis acid : An electron acceptor Bases: bases are bitter tasting and slippery

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Chapter 15: Acid / Base Chemistry

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pH of (a)Weak Acid Solutions, (b) Bases, (c) Polyprotic Acids, and (d) Salts

Lecture 21. pH of (a)Weak Acid Solutions, (b) Bases, (c) Polyprotic Acids, and (d) Salts. Chemistry 142 B Autumn 2004 J. B. Callis, Instructor. Calculation of the pH of Weak Acid Solutions - A Systematic Approach (1).

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Acids and Bases

Acids and Bases. Chapter 15. Overview. Acid /Base Theories Arrhenius, Bronsted-Lowry and Lewis Acid Strength pH Equilibria / Hydrolysis Common Ion effect Buffers omit carboxylic acids, sec 15.9, 15.10. Arrhenius Definitions review. Acid: H 3 0 +1 producer in water

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Synthesis of Aspirin

Synthesis of Aspirin. Synthesis Purification Characterization. Aspirin: some background. Patented by Bayer in 1893 One of the oldest drugs One of the most consumed drugs (Production in the US is 10 million Kg/year). Aspirin: Biological activity. Analgesic (painkiller)

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Ch. 20: Acids and Bases

Ch. 20: Acids and Bases. Ch. 20.1 Describing Acids and Bases Ch. 20.2 Hydrogen Ions and Acidity Ch. 20.3 Acid-Base Theories Ch. 20.4 Strengths of Acids and Bases. Ch. 20.1 Describing Acids and Bases. Properties of Acids and Bases Acids Produce H + ions when dissolved in water

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Acid-Base Catalyzed Reactions

Acid-Base Catalyzed Reactions. In most reactions that are acid- or base- catalyzed, there is no reaction at all in the absence of at least a trace of catalyst. sequences involve proton transfer reactions between catalyst and reagent(s) Experiment shows:. K 1. k 2. log k obs.

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Chapter 9 Aqueous Solutions and Chemical Equilibria

Chapter 9 Aqueous Solutions and Chemical Equilibria. Solutions of Electrolytes Electrolytes: Form ions when dissolved in water or other solvents and produce solutions that conduct electricity. Strong Electrolytes: Ionize essentially completely. Strong conductor of electricity.

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STAAR Ladder to Success

STAAR Ladder to Success. Rung 10. Arrhenius Definition. Savante Arrhenius, Swedish chemist who by 1890 formulated the first useful theory for acids. Acids contain hydrogen ions. Bases contain hydroxide ions (OH - ). Bronsted -Lowry Definition. Acids are proton (H + ) donors.

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Acids & Bases

Acids & Bases. Acids: acids are sour tasting Arrhenius acid : Any substance that, when dissolved in water, increases the concentration of hydronium ion (H 3 O + ) Bronsted-Lowry acid : A proton donor Lewis acid : An electron acceptor Bases: bases are bitter tasting and slippery

806 views • 10 slides