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Chapter 18: Chemical Equilibrium

Chapter 18: Chemical Equilibrium

Chapter 18: Chemical Equilibrium. 1. The Concept of Equilibrium. A. Equilibrium exists when two opposing processes occur at the same rate. B. Reversible reactions 2NO 2 (g) N 2 O 4(g) 1. Products take part in a separate reaction to reform the reactants

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Chapter 16

Chapter 16

Chapter 16. Acids and Bases. Arrhenius Acid-Base Theory. Arrhenius, Svante August (1859-1927), Swedish chemist 1903 Nobel Prize in chemistry acid - hydrogen ion (proton) donor base - hydroxide ion donor. Bronsted-Lowrey Acid-Base Theory. acid - proton donor base - proton acceptor

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Chemistry 19.3

Chemistry 19.3

Chemistry 19.3. Strengths of Acids and Bases. 19.3.

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Chemistry 19.3

Chemistry 19.3

Chemistry 19.3. Strengths of Acids and Bases. 19.3.

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ACIDS AND BASES

ACIDS AND BASES

ACIDS AND BASES. Dissociation Constants. weaker the acid, the stronger its conjugate base. stronger the acid, the weaker its conjugate base. weaker the base, the stronger its conjugate acid. stronger the base, the weaker its conjugate acid. Write equilibrium expression for an acid or base

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Strong and Weak Acids and Bases

Strong and Weak Acids and Bases

19.3. Strong and Weak Acids and Bases. Strong and Weak Acids and Bases How does the value of an acid dissociation constant relate to the strength of an acid?. 19.3. Strong and Weak Acids and Bases.

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Mixing weak acids

Mixing weak acids

Mixing weak acids. Calculate the pH of a solution that contains 1.00 M HCN ( K a = 6.2 x10 -10 ) and 5.00 M HNO 2 ( K a = 4.0 x 10 -4 ). Also calculate the concentration of cyanide ion (CN - ) in this solution at equilibrium. Percent Dissociation.

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Strengths of Acids & Bases Section 20.4

Strengths of Acids & Bases Section 20.4

Strengths of Acids & Bases Section 20.4. Strength of an acid or base depends on the degree to which they ionize (break down) in water. Strong Acids: completely ionized in aqueous solution Ex. HCl & H 2 SO 4 HCl + H 2 O --> H 3 O + + Cl -.

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335 views • 6 slides

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