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Acid-Base Equilibria

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2. Solutions of a Weak Acid or Base. The simplest acid-base equilibria are those in which a single acid or base solute reacts with water.. In this chapter, we will first look at solutions of weak acids and bases.. We must also consider solutions of salts, which can have acidic or basic properties a

Acid-Base Equilibria

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Acid-Base Equilibria

Acid-Base Equilibria. Acids and bases are some of the more commonly encountered chemicals Acids and Bases control composition of blood and cell fluids, affect flavors, involved in digestion Bases used in house hold cleaners (NH 3 -based cleansers) Acid rain is an environmental problem

644 views • 25 slides

Acid-Base Equilibria

Mar. 24. Acid-Base Equilibria. The reaction of weak acids with water, OR the reaction of weak bases with water, always results in an equilibrium!! The equilibrium constant for the reaction of a weak acid with water is K a. [H 3 O+] [F - ]. K a =. [HF]. Mar. 24.

1.17k views • 73 slides

Acid - Base Equilibria

Acid - Base Equilibria. AP Chapter 16. Acids and Bases. Arrhenius acids have properties that are due to the presence of the hydronium ion ( H + ( aq )) They turn litmus red.

734 views • 52 slides

Acid / Base Equilibria

Acid / Base Equilibria. A Practical Application of the Principles of Equilibrium. Water is always in equilibrium with its ions:. 2H 2 O(l)   H 3 O + ( aq ) + OH - ( aq ) K W = [ H 3 O + ] [ OH - ] = 1.0 x 10 -14 (numeric value applies at 25 o C )

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Acid-Base Equilibria

Acid-Base Equilibria. BLB 12 th Chapter 16. Expectations. Distinguish between acids and bases Definitions &amp; properties Know common strong and weak examples Calculate pH for strong and weak systems Write chemical reactions of acids and bases Predict relative acid-base strength.

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Acid-Base Equilibria

Acid-Base Equilibria. AP Chem Unit 15. Unit 15 Content . Solutions of Acids or Bases Containing a Common Ion Buffered Solutions Buffering Capacity Titrations and pH Curves Acid-Base Indicators. Introduction.

1.03k views • 81 slides

Acid-base equilibria

Acid-base equilibria. Chemistry 321, Summer 2014. Goals of this lecture. Quantify acids and bases as analytes Measure [H + ] in solution  pH Control/stabilize [H + ] in solution  buffers Predict/control the form of acid or base in solution  ligands.

470 views • 24 slides

Acid Base Equilibria

Acid Base Equilibria. Dr. Harris Ch 20 Suggested HW : Ch 20: 5, 9, 11*, 18*, 19*, 21 , 29 **, 35, 56**, 59, 66 * Use rule of logs on slide 10 ** Use K a and K b tables in ch 20 text. . Introduction.

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Acid-Base Equilibria

Acid-Base Equilibria. Chapter 16. The presence of a common ion suppresses the ionization of a weak acid or a weak base. CH 3 COONa ( s ) Na + ( aq ) + CH 3 COO - ( aq ). common ion. CH 3 COOH ( aq ) H + ( aq ) + CH 3 COO - ( aq ).

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Acid-Base Equilibria

Acid-Base Equilibria. Chapter 16. HA ( aq ) + H 2 O ( l ) H 3 O + ( aq ) + A - ( aq ). HA ( aq ) H + ( aq ) + A - ( aq ). [H + ][A - ]. K a =. [HA]. weak acid strength. K a. Weak Acids (HA) and Acid Ionization Constants.

491 views • 23 slides

Acid-Base Equilibria

Acid-Base Equilibria. The reaction of weak acids with water, OR the reaction of weak bases with water, always results in an equilibrium!! The equilibrium constant for the reaction of a weak acid with water is K a. [H 3 O+] [F - ]. K a =. [HF]. Acid-Base Equilibria.

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Acid – Base Equilibria

Acid – Base Equilibria. Buffer Solutions: Question: Was the ICE Problem set up needed? Answer: No. The assumption of x &lt;&lt; [HA], [A - ] is valid for all “traditional” buffers Traditional Buffer Weak acid (3 &lt; pK a &lt; 11) Ratio of weak acid to conjugate base in range 0.1 to 10

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Acid Base Equilibria

Acid Base Equilibria. Complications: Beyond pH of strong acids or strong bases HCl(aq) H + (aq) + Cl - (aq) K a &gt; 1 HF(aq) H + (aq) + F - (aq) K a = 7.2 x 10 -4. Weak conjugate base. Strong acid. Weak acid. stronger conjugate base. Conjugate Bases. Bronsted-Lowry Model

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Acid-Base Equilibria

Acid-Base Equilibria. Sour taste React with active metals to release hydrogen gas Change the color of indicators. Bitter taste Feel slippery Change the color of indicators. Acids Bases. Arrhenius Acid/Base Theory.

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ACID-BASE EQUILIBRIA

ACID-BASE EQUILIBRIA. INTRODUCTION Acidity and basicity of a solution is important factor in chemical reactions. In this topic you will review acid-base theories and the basic pH concept. Others topic involve various calculation on acid-base equil., including weak acids and bases.

676 views • 16 slides

Acid-Base Equilibria

Acid-Base Equilibria. Solutions of a Weak Acid or Base. The simplest acid-base equilibria are those in which a single acid or base solute reacts with water. In this chapter, we will first look at solutions of weak acids and bases.

1.79k views • 149 slides

Acid-Base Equilibria

Acid-Base Equilibria. Chapter 16. The presence of a common ion _____________the ionization of a ________acid or a __________base. CH 3 COONa ( s ) Na + ( aq ) + ). common ion. CH 3 COOH ( aq ) H + ( aq ) + ).

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Acid-Base Equilibria

Acid-Base Equilibria.

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ACID-BASE EQUILIBRIA

ACID-BASE EQUILIBRIA. pH Scale. pH = - log [H + ] or pH = - log [H 3 O + ]. Why a logarithm scale?. pH Problems. Example: If [H + ] = 1 X 10 -10 pH = - log 1 X 10 -10 pH = - (- 10) pH = 10 What would be the pH of a 0.000018 M HNO 3 solution?

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Acid Base Equilibria

Acid Base Equilibria. Types of Acids. H + vs H 3 O + Arrhenius Definition Acids – Increase [H+] when dissolved in water HCl Bases – Increase [OH-] when dissolved in water NaOH Br ø nsted-Lowry Definition Acids – Donates protons Bases – Accepts protons

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Acid-Base Equilibria

Acid-Base Equilibria. Acids and Bases: A Brief Review. Acids: taste sour and cause dyes to change color. Bases: taste bitter and feel soapy. Arrhenius: acids increase [H + ]; bases increase [OH - ] in solution. Arrhenius: acid + base  salt + water.

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