Lecture 12. Conjugate acid/base pairs HA + B  A - + BH +

Slides:



Advertisements
Similar presentations
Salts and pH. Soluble salts dissociate in water to produce ions. Salts are basically ionic compounds that can be formed from the reaction from an acid.
Advertisements

Chapter 8 Activity Goodbye Freshman Chemistry Hello Real World.
Updates Assignment 04 is is due today (in class) Midterms marked (in the box); solutions are posted Assignment 03 is in the box.
Brønsted-Lowry definition of an acid: An acid is a proton donor. 721.
Chapter 9 Aqueous Solutions and Chemical Equilibria Solutions of Electrolytes Electrolytes: Form ions when dissolved in water or other solvents and produce.
Acids and Bases Chapter and Br Ø nstead Acids and Br Ø nstead Bases Recall from chapter 4: Recall from chapter 4: –Br Ø nstead Acid-
Acid-Base Equilibria Chapter 16. HA (aq) + H 2 O (l) H 3 O + (aq) + A - (aq) Weak Acids (HA) and Acid Ionization Constants HA (aq) H + (aq) + A - (aq)
Acid-Base Equilibria pH and pOH Relationship of Conjugate Pair acid-base strength. When acids or bases control pH:  determine K  predict pH When pH controls.
Chapter 6 Problems 6-29, 6-31, 6-39, 6.41, 6-42, 6-48,
Copyright 1999, PRENTICE HALLChapter 161 Acid-Base Equilibria Chapter 16 David P. White University of North Carolina, Wilmington.
Polyprotic Acids And Acid and Base Salts.
Students should be able to: 1. Identify strong electrolytes and calculate concentrations of their ions. 2. Explain the autoionization of water. 3. Describe.
  Water acts as both acid and base  Dissociates into H 3 O + and OH - ions  2H 2 O (l)  H 3 O + (aq) + OH - (aq)  Rewritten,  H 2 O (l) + H 2.
Chapter 6 Problems 6-29, 6-31, 6-39, 6.41, 6-42, 6-48,
Jeopardy Acid/Base Reactions And Indicators pH Molarity/ Dilutions Acid/Base Definitions Acid/Base Properties Q $100 Q $200 Q $300 Q $400 Q $500 Q $100.
Calculations Involving Acids and Bases IB Chemistry Power Points Topic 18 Acids and Bases
Chem. 31 – 3/9 Lecture. Announcements I Exam 1 –Will be returned in lab (starting later today) –Not completed while preparing this Cl lab report –Due.
Chapter 6 (CIC) and Chapter 16 (CTCS) Read in CTCS Chapter Problems in CTCS: 16.3, 5, 7, 9, 11, 15, 19, 21.
ACIDS AND BASES Description of reactivity. pH SCALE POWER OF HYDROGEN MEASURES IONS (H+ / OH-) IONS: Electrically charged particles ACIDS … H+ BASES …
Properties of acids n Taste Sour (kids, don’t try this at home). n Conduct electricity. n Some are strong, some are weak electrolytes. n React with metals.
Acids and Bases: Introduction Section Objectives Identify the physical and chemical properties of acids and bases Classify solutions as acidic,
Polyprotic Acids & Acid Strength Mr. Chapman Chemistry 30.
Characteristics of Acids: Table K  Electrolytes  pH scale: less than 7  Litmus: RED  Phenolphthelein: colorless  Contains a high concentration of.
Determining the Strengths of Acids and Bases
Chapter 15 Notes1 Chapter 15: Aqueous Equilibria: Acids and Bases 1. acid/base characteristics reactions (Arrhenius, Bronsted-Lowry, gas formation) hydronium.
1 Acids, Bases and PH. 2 Some Properties of Acids þ Produce H + (as H 3 O + ) ions in water (the hydronium ion is a hydrogen ion attached to a water molecule)
Acids-Bases Arrhenius: Acid…. A substance that increases the hydrogen ion, H +, concentration when dissolved in H 2 O. Eg. HCl, H 2 SO 4, HC 2 H 3 O 2.
Chemistry Chapter 19 Practice with acids and bases.
Chapter 7 Acids and Bases. Arrhenius Definitions － Acids produce hydrogen ion in aqueous, and bases produce hydroxide ions. Brønsted-Lowry Definitions.
Volumetric Analysis – Titrations Volumetric Analysis a process of analysis accomplished by adding together particular volumes of 2 solutions the objective.
Acids/Bases. Properties of Acids pp 186 Properties of Bases pp 186.
O 2 vs CO binding a heme. Understand and identify weak and strong electrolytes OWL – 7.6 o Strong electrolyte Dissolve & 100% Dissociate Strong electrolyte.
Acid-Base Notes. Acid- Compound that forms hydrogen ions (H + ) when dissolved in water Base – compounds that forms hydroxide ion (OH - ) when dissolved.
Acid/Base Properties of Salt Solutions Salts Ionic compounds When dissolved in water, salts may behave as acids, bases.
III. Titration (p ) Ch. 16 – Determining pH and Titrations.
CHAPTER 13 Acids and Bases 13.3 Acid-Base Equilibria.
ACID BASE EQUILIBRIA ACID-BASE THEORIES (4 theories)
Acids, Bases & pH.
PH ( power of hydronium ion). The pH scale is a way of expressing the strength of acids and bases. Instead of using very small numbers, we just use the.
Acids Lesson 22 Subtle Items. 1.Weak bases neutralize a strong acid as well as a strong base would.
P.Sci. Unit 11 Cont. Solutions, Acids, and Bases Chapter 8.
Salt Hydrolysis. Salts Ionic compound made up of CATION and ANION Has acidic and basic properties Based on ions produced when salts dissociate No acid/base.
Definition of Acids Traditional (Arrhenius)- a chemical compound that contains hydrogen and ionizes in aqueous solutions to form hydrogen ions Examples:
Chapter 15: Acids & Bases Ridgewood High School
CHE 1316 Laboratory Measurements & Techniques LECTURE 3 Acids and Bases Titration Curves Strong Acid/Strong Base Titrations Acid/Base Indicators
ACID-BASE NEUTRALIZATION REACTIONS: A special type of double-replacement reaction. An acid reacts with a base and neutralizes it. The equation will always.
What makes an acid an acid or a base a base can vary depending on definition being used. The first definition was created by Svante Arrhenius in 1883.
Acid-Base Properties of Salt Solutions Chapter 8.6.
Chapter 19 – Acids, Bases, and Salts
Chemistry 141 Wednesday, October 4, 2017 Lecture 13
Neutralization Reactions
Topic: Acids and Bases (Part 2)
Jeopardy Molarity/ Dilutions Acid/Base Properties Acid/Base
Chap 14 Acids and Bases.
Acids & Bases III. Titration.
CHEM 121 Chapter 9 Winter 2014.
Calculations with Acids and Bases
Acids and Bases.
Topic 8: Acids and Bases Topic 8.3: The pH scale is an artificial scale used to distinguish between acid, neutral, and basic/alkaline solutions Topic.
Types of Acid Base Equilibrium Problems
Acid-Base Equilibria Chapter 16.
Electrolytes Pure water does not conduct electricity. It is the substances dissolved that permit the passage of current. These substances are called “electrolytes”
Ch. 15 & 16 - Acids & Bases III. Titration (p )
Acid / Base and pH / pOH Chemistry Unit 10.
Net Ionic Equations Balance the equation
How would you describe the chemical behavior of the water molecule?
Explain a detergent molecule; describe how it has 2 distinctive parts.
Ch. 15 & 16 - Acids & Bases III. Titration (p )
Unit 5- lecture 5 Using the pH scale to characterize acids and bases.
Strong Acids and Bases Strong Acids
Presentation transcript:

Lecture 12

Conjugate acid/base pairs HA + B  A - + BH +

Salts Ionic solid Product of acid/ base reaction  neutralization

Autoprotolysis of water H 2 O + H 2 O  H 3 O + + OH - K w = [OH - ][H 3 O + ]  = 1.01 x o C

What is pH? pH = -log{H 3 O + } ~ -log[H 3 O + ] pH of pure water? Acidic vs. Bases

Strength of Acids/Bases

Weak Acid : Doesn’t completely dissociates

Strength of Acids/Bases Weak Base: Doesn’t completely dissociates

Relationship between K a and K b

Polyprotic acids

Ionic Strength C = molarity z = charge 1:1 electrolytes (NaCl) - μ = molarity 2:1, etc electrolytes (BaCl 2 ) - μ > molarity

What is the ionic strength of 0.1 M LiCl? What is the ionic strength of 0.1M Ca(NO 3 ) 2 ?

Electrolyte (salt) effect Effective concentration of ions become less as μ increases Shielding effect Non-ideal behavior

Activity [i] o = 1M (makes {i} dimensionless) γ is activity coefficient

Extended Debye-Hückel equation α – ion size z - charge γ – activity coefficient μ – ionic strength

Interpolate

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.