Chapter 20 Section 3 monoprotic acid- contains one ionizable H ex- HNO 3 diprotic acid- contains two ionizable H ex- H 2 SO 4 triprotic acid- contains.

Slides:

Advertisements

Similar presentations

Advertisements

Acid-Base Theories Section 20.3

Acid and Base 5/13/11 warm-up What are the 3 definitions of Acid and base?

 Brønsted/Lowry acid: a proton donor proton donor?... a proton is also an H + ion  in water, H 2 O + donated H +  H 3 O +  H 3 O + = “hydronium ion”

There are 3 theories… Arrhenius (most common) Bronsted-Lowry Lewis.

Acids and Bases Part 2. Classifying Acids and Bases Arrhenius Acid ◦ Increases hydrogen ions (H + ) in water ◦ Creates H 3 O + (hydronium) Base ◦ Increases.

Acids, Bases, and Salts Chapter 19.

Acids & Bases. Properties of Acids & Bases  Acids Aqueous solutions of acids have a sour taste Turn blue litmus paper to red React with metals to produce.

14.2 ACID-BASE THEORIES There are 3 theories to describe acids and bases.

1. Comments on Test 2. Section 16.1A – Acids and Bases 3. Homework: pg 589, #2, 3, 7, 8, 9, 10 Wednesday, March 12, 2008.

ACIDS AND BASES.

Acids and Bases. What are acids and bases?  Arrhenius Acids Hydrogen-containing compounds that ionize to yield hydrogen ions (H + ) in aqueous solutions.

Properties of Acids and Bases Acids taste sour, will change the color of an acid base indicator, and can be strong or weak electrolytes in aqueous solution.

Chemistry 121/122 Acids, Bases and Salts. Properties of Acids Acids, in foods, give a sour or tart taste Aqueous solutions of acids are electrolytes (conduct.

Definitions of Acids and Bases

Acids and Bases Acid-Base Theories.  Objectives  Define and recognize Brønsted-Lowry acids and bases  Define a Lewis acid and a Lewis base  Name compounds.

Slide 1 of 35 © Copyright Pearson Prentice Hall Acid-Base Theories > > > Properties of Acids and Bases Acids Acids taste ____________, will change the.

ATB Question of the Day Day

Acids and Bases: Introduction Section Objectives Identify the physical and chemical properties of acids and bases Classify solutions as acidic,

Aim: What are acids and bases?. Acids 1.Acids can be strong or weak electrolytes in aqueous solutions. 2.Acids (ex: HCl) react with certain metals to.

Acid-Base Theories The “Boyz”. Acid and Base Theories2 Arrhenius Theory of Acids Acid: molecular substances that breaks-ups in aqueous solution into H+

Chapter 15 Acids and Bases. Sect. 15-1: Properties of Acids and Bases Acids  Have a sour taste  Change the color of acid-base indicators  Some react.

Unit 18 Acids and Bases. I. Defining Acids & Bases A. Properties Acids Bases 1. Taste sour bitter (not in lab) ex: Citrus ex: soap fruits, yogurt vinegar.

Chapter 19: Acids and Bases Sections 19.1 to 19.4.

Acids and Bases Unit 12. Properties of an Acid  Sour taste  Turns litmus paper red (and responds uniquely to other indicators)  Reacts with:  Hydroxide.

19.1 Acid-Base Theories> 1 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. ATB Day Sit with your testing group.

Chapter 20 Acids and Bases Describing Acids and Bases Hydrogen Ions and Acidity Acid-Base Theories Strengths of Acids and Bases.

NOTES: 19.1 – Acid-Base Theories

Chemistry Notes Acid/Base Theories. There are three ways to define acids and bases. This reflects the fact that science is always revising itself.

ACIDS, BASES & SALTS The Arrhenius Theory of Acids and Bases.

ACIDS AND BASES Chemistry. Arrhenius Acids & Bases  Arrhenius Acids  Donate H + to the solution  HNO 3 H + + NO 3 -  Arrhenius Bases  Donate OH -

Acids and Bases. Definitions: 1.Arrhenius- Acid- substance that dissociates in water to produce hydrogen ions - H + Examples: HC l, HNO 3, H 2 SO 4, etc.

Acids, Bases, and Salts - Acids taste sour, will change the color of an indicators (chemical dyes), and can be strong or weak electrolytes (aqueous solutions.

Review Acids and Bases. Acids taste ______ and bases taste _______? Sour, bitter.

Review: Arrhenius Definition of Acids and Bases Acids produce H + in aqueous (water) solutions Acids produce H + in aqueous (water) solutions water water.

ACID/BASE Theories & Review

Acid and Bases: An Introduction. Properties of Acids 1. Sour taste 2. Can produce H + (hydrogen) ions (protons) 3. Change the color of litmus from blue.

Tonight’s homework: Read pages Do practice problems 1 & 2.

REVISION ACIDS & BASES. MODELS ARRHENIUS THEORY A n acid is a substance that produces hydrogen ions (H + )/hydronium ions (H 3 O + ) when it dissolves.

Acids, Bases, and Salts Chapter Inquiry Lab Leah sure is sick. The doctor said she can not eat anything acidic. It will make her stomach hurt really.

Acid and Base Definitions Objectives: 1. State the Bronsted-Lowry definition of acids and bases. 2. Identify the common physical and chemical properties.

Pg ◦ Tastes sour ◦ Corrosive to metals ◦ Electrolytes: break into ions when dissolved in water ◦ React with blue litmus and indicators.

1 Dr. Marwa Eid. 3 4  An acid is a solution that has an excess of H + (hydrogen ion).  The more H + ions, the more acidic the solution.

19.1 Acid-Base Theories> 1 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. ATB Day Sit with your testing group.

ATB Question of the Day Day

Chapter 14 Section 2: Acid / Base Theories. Objectives Define and recognize Brønsted-Lowry acids and bases. Define a Lewis acid and a Lewis base. Name.

Preview Lesson Starter Objectives Brønsted-Lowry Acids and Bases Monoprotic and Polyprotic Acids Lewis Acids and Bases Chapter 14 Section 2 Acid-Base Theories.

Acids and Bases Acids: often have a tart or sour taste - Examples include citrus fruits, vinegar, carbonated beverages, car batteries Properties of Acids:

© Houghton Mifflin Harcourt Publishing Company Acids 1.Aqueous solutions of acids have a sour taste. 2.Acids change the color of acid-base indicators.

15.1 Water and Its Properties > 1 1. How much solute is dissolved in 150 mL of a 5M solution (answer in moles)? Day moles of solute.

Acid-Base Theories Prentice-Hall Chapter 19.1 Dr. Yager.

Slide 1 of 35 Chemistry © Copyright Pearson Prentice Hall Slide 2 of 35 Acid-Base Theories Bracken Cave, near San Antonio, Texas, is home to twenty.

Aim: How did Bronsted describe acids and bases? Do Now: 1.Take out a calculator and reference tables. 2.How did Arrehnius define an acid and a base?

Classifying Acids and Bases. Acid and Base Theories  There are different ways of defining what an acid and base is 1. Arrhenius 2. Bronstead Lowry.

The Chemistry of Acids and Bases. Acids and Bases: Definitions At the conclusion of our time together, you should be able to: 1. Define an acid in 3 different.

Acids and Bases. Acids and bases have distinct properties : –Acids give foods a tart or sour taste. –Aqueous solutions of acids are strong or weak electrolytes.

Intro to Acids and Bases (again!). Anion (example) Acid (example) _______ ide (chloride, Cl - ) ________ate (chlorate, ClO 3 - ) _________ite (chlorite,

Self-ionization of Water and pH

Chapter 19 Notes: Part II Acid/Base Theories.

ACIDS, BASES and SALTS Definitions Acid Base

Ch Acids & Bases Ch p Ch p

Brønsted-Lowry Acids and Bases

MODERN CHEMISTRY CHAPTER 14 ACIDS AND BASES

Section 2 Acid-Base Theories

Prentice-Hall Chapter 19.1 Dr. Yager

Acids, Bases, Salts An introduction.

Chapter 19 Notes, Part II Acid/Base Theories.

Chapter 19.1 Acid-Base Theories

Chapter 14 Preview Lesson Starter Objectives

Descriptions & Reactions

Presentation transcript:

Chapter 20 Section 3 monoprotic acid- contains one ionizable H ex- HNO 3 diprotic acid- contains two ionizable H ex- H 2 SO 4 triprotic acid- contains three ionizable H ex- H 3 PO 4

Definitions of acids and bases Arrhenius Definition acid- hydrogen containing compounds that ionize to yield H + ions ex- HCℓ(aq) → H + (aq) + Cℓ - (aq) base- hydroxide containing compounds that ionize to yield OH - ions ex- NaOH(aq) → Na + (aq) + OH - (aq) *not a good definition b/c it omits many substances (ex- NaHCO 3 → baking soda)

Bronsted-Lowry Definition acid- H + ion donor ex HCℓ(aq) + H 2 O(ℓ) → H 3 O + (aq) + Cℓ - (aq) -produces hydronium ion- H 3 O + base- H + ion acceptor -used this definition b/c not all bases contain OH - but do all form OH - in solution ex NH 3 (aq) + H 2 O(ℓ) → NH 4 + (aq) + OH - (aq)

conjugate acid- particle formed when a base gains a hydrogen ion conjugate base- particle that remains when an acid has donated a hydrogen ion conjugate acid-base pair- two substances related to each other by the loss or gain of a single hydrogen ion -an acid donates a proton and becomes a conjugate base -a base accepts a proton and becomes a conjugate acid

-page 597- look at examples amphoteric- substances that can act as acids or bases Lewis Acids and Bases acid - substance that can accept a pair of electrons base - substance that can donate a pair of electrons

TypeAcidBase ArrheniusH + producerOH - producer Bronsted- Lowry H + donorH + acceptor Lewise - pair acceptore - pair donor