61. Learn.co.za Lessons in Chemistry acids and bases. acids and bases Redox Reactions TitrationsSummary acids and bases. Copyright © 1998 2002 Learning Channel Campus. http://www.learn.co.za/content/grade12/Science/chem_acidsbases/

You are here: Classroom Grade 12 Science Chemistry : Acids and Bases Lessons in Chemistry : Acids and Bases Acids and Bases Redox Reactions Titrations ... Summary: Acids and Bases

62. 09 - Acids And Bases Home IB Chemistry 09 acids and bases. 09 - acids and bases. 9.1Properties of acids and bases. 9.2 Bronsted-Lowry acids and bases. http://www.revision-notes.co.uk/revision/120.html

RevisionNotes.Co.Uk - Free Revision and Course Notes for UK Students Home IB Chemistry : 09 - Acids and Bases Revision Notes GCSE A-Level University IB User Options Search My Revision Notes Bookmark Page Contribute Contribute Work Other Sites Essay Bank Coursework.Info Custom Research 09 - Acids and Bases Save this page for later viewing View Saved Pages 9.1 Properties of acids and bases 9.1.1 : Properties of acids and bases in aqueous solutions on stuff...nb...the term alkali refers to a base dissolved in water. Indicators...they change color depending on whether they're in acidic or basic conditions...each one's different, so I suppose I'd better list some common ones... Methyl orange Bromophenol blue Methyl red Bromothymol blue Phenolphtalein Acid red yellow red yellow colorless Base yellow blue yellow blue red Each one change color as a different pH, and so there will be cases where one is useful and others are not. (not really necessary is SL?) O + NaCl. + H Acids with carbonates...will produce water and CO ie 2HCl + CaCO + H O + CaCl 9.1.2 : Experimental properties of acids and bases...when acids and bases neutralize, the reaction is noticeably exothermic (ie heat can be felt coming from the reaction). Obviously, they will have an effect on the color of indicators as described above. The hydrogen produced in the reaction of acids with metal will produce a 'pop' sound if a match is held to it, and the CO

63. 19 - Acids And Bases Home IB Chemistry 19 acids and bases. 19 - acids and bases. 19.2 Calculationsinvolving acids and bases. 19.2.1 H 2 O (l) = H + (aq) + OH - (aq) . http://www.revision-notes.co.uk/revision/128.html

RevisionNotes.Co.Uk - Free Revision and Course Notes for UK Students Home IB Chemistry : 19 - Acids and Bases Revision Notes GCSE A-Level University IB User Options Search My Revision Notes Bookmark Page Contribute Contribute Work Other Sites Essay Bank Coursework.Info Custom Research 19 - Acids and Bases Save this page for later viewing View Saved Pages 19.1 Lewis theory 19.1.1 : A lewis acid is defined as a species which accepts an electron pair to form a dative/coordinate covalent bond. A lewis base is a species which donates an electron pair to form such a bond. This is a special type of covalent bond because the bond is formed by two electrons from one species and none from the other. This often occurs in the formation of complex ions (or in BL acid/base reactions because the H ion has no electrons, and so must accept a pair to bond with anything...Lewis theory is more general than BL). 19.2 Calculations involving acids and bases 19.2.1 : H O (l) (aq) + OH (aq) . K w =[H ][OH ] The value of K w is 1 x 10 at 25c but varies with temperature. 19.2.2 : pH = -log[H+] (pH is the negative log of the concentration of H

64. Acids And Bases acids and bases. Weak acids and bases only partially dissociate to form some ionsand there is still some of the original acid or base present in solution. http://wwwchem.csustan.edu/chem3070/3070M07.HTM

Acids and Bases ACIDS donate protons to water to form hydronium ions taste sour turn cabbage juice red turn litmus paper red BASES donate hydroxyl groups accept protons taste bitter feel slimey turn cabbage juice yellow, green or blue depending upon the solution concentration turn litmus paper blue pH The concentration of hydrogen ions is measured on a logrithmic scale: pH = - log [H O Table 1 shows the correlation between hydrogen ion concentration and pH. A solution with a low pH is acidic, and a solution with a high pH is basic. Solutions at a pH of 7 are neutral. Recipe for Cabbage juice: fill a blender with pieces of red (purple) cabbage add water blend to smithereens filter cabbage juice using a coffee filter The juice can be used to make a rainbow of colors corresponding to various (approximate) pH values. Strong acids and bases completely dissociate to form ionic species. There is none of the original acid or base left in solution. Weak acids and bases only partially dissociate to form some ions and there is still some of the original acid or base present in solution. For example, a .1M solution of HCl has a pH of 1, because all of the HCl reacts with water to form H O ions. Therefore all the moles that were once HCl are now H

65. Determining Acids And Bases - An AskERIC Lesson Plan Determining acids and bases. An AskERIC Lesson Plan. Subject(s) Science/Chemistry.OVERVIEW An introduction to using indicators to determine acids and bases. http://www.askeric.org/Virtual/Lessons/Science/Chemistry/CHM0012.html

Lesson Plan #:AELP-CHM0012 Determining Acids and Bases An AskERIC Lesson Plan AUTHOR: Melodie Hill, Lewis©Arriola Elem., CO Date: May 1994 These lesson plans are the result of the work of the teachers who have attended the Columbia Education Center's Summer Workshop. CEC is a consortium of teacher from 14 western states dedicated to improving the quality of education in the rural, western, United States, and particularly the quality of math and science Education. CEC uses Big Sky Telegraph as the hub of their telecommunications network that allows the participating teachers to stay in contact with their trainers and peers that they have met at the Workshops. Grade Level(s): Subject(s): Science/Chemistry OVERVIEW: An introduction to using indicators to determine acids and bases. PURPOSE: To introduce acidity/alkalinity of substances using an indicator to determine their differences and safety precautions in handling of each. OBJECTIVES: The student will use purple cabbage indicator to test five know substances for acidic/alkaline balance. The student will discuss the safety precautions required both inside and outside a lab in handling acids and bases. RESOURCES/MATERIALS: Several clear containers Several household substances (see activity 2) Purple Cabbage Indicator (Coarsely shred a head of purple cabbage. Place in saucepan and fill 1/2 full of water. Boil about ten minutes. Strain the liquid and refrigerate until ready to use.)

66. Lewis Acids & Bases Lewis acids bases. 3/16/00. Click here to start. Table of Contents. PPT SlideLewis acids bases. Lewis acids bases. Lewis acids bases. Lewis acids bases. http://info.hartwick.edu/envirsci/Courses/chem108/ch17-3new/

Click here to start Table of Contents PPT Slide PPT Slide PPT Slide PPT Slide ... Basicity of Oxoanions Author: Meredith E. Newman Email: newmanm@hartwick.edu Home Page: /envirsci

67. ICSD Chemistry Zone: Acids & Bases Lessons lesson.gif (1118 bytes), ICSD Chemistry Zone acids bases Lessons. Name. Introductionto acids and bases, This introduces the three theories of acids and bases. http://207.10.97.102/chemzone/lessons/07acidbase/default.htm

Name Description Type Introduction to Acids and Bases This introduces the three theories of acids and bases. Arrhenius, Lewis, and Bronsted-Lowry theories are covered. Slide show (shockwave) Electrolytes This illustrates the concept of an electrolyte. (Flash) The pH Scale This lesson shows the origin of the pH scale and the ionization constant of water. It also examines titration. Slide show (shockwave) pH Tutorial This is a complete lesson on Acids, Bases, solubility constants, and pH. It includes quizzes as you progress. pH, the power of hydrogen A cute pH scale that shows exactly how it relates to the concentration of Hydrogen ions. Live Tool (Shockwave) pH Calculations Practice This lets you practice converting between pH, pOH, [H ] and [OH Bring a calculator. Live Practice (Javascript) Titration Simulation This simulation lets you actually go through a titration and provides enough info for calculations. Simulation (Java Applet) Titration Problem Solving Guide Having trouble knowing what to do in a titration calculation problem? This tutorial will walk you through it.

68. Acids And Bases (4 Lab Lessons) acids and bases Their Reactions, Conductivity, Base Indicators. and NeutralizationReaction (4 Lab Lessons). Electrical Conductivity in acids and bases. http://www.scienceteacherprogram.org/chemistry/girard01.html

Jennifer Girard Return to Chemistry Menu Lawrence H.S., Lawrenceville, NJ Summer 2001 Acids and Bases: Their Reactions, Conductivity, Base Indicators and Neutralization Reaction (4 Lab Lessons) Background An example of how using this “group meeting” format for my action plan involves a three day lesson on acids and bases. The class will be broken up into 8 groups. There are four different activities, which means there will be two groups working on completing each activity. The groups will conduct the experiment that is assigned to them. Then based on the data they collected, internet research and textbook information they will be required to answer analysis questions. This information will then be presented to the class using a power point format. The following are the topics of the experiments that will be done by each group. Acids and their reactions with metals Electrical conductivity of acids and bases Acid and base indicators The neutralization reaction These experiments will allow the students to determine some physical and chemical characteristics of acids and bases. Day one will be spent on collecting data from the experiments.

69. Brinkmann Instruments: Properties Of Acids And Bases Properties of acids and bases. Molarities and Specific Gravities ofConcentrated acids and basespes Acid/Base, Molecular weight, % by http://www.brinkmann.com/support_practical-acid-base.asp

Practical Information for the Molecular Biologist Abbreviations, Symbols, and Units The Genetic Code Nucleic Acid Conversions Protein Conversions ... Molecular Structure of the Amino Acids Properties of Acids and Bases Molarities and Specific Gravities of Concentrated Acids and Basespes Acid/Base Molecular weight % by weight Molarity (approx.) 1 M solution (ml/liter) Specific gravity Acids Acetic acid (glacial) Formic acid Hydrochloric acid Nitric acid Perchloric acid Phosphoric acid Sulfuric acid Bases Ammonium hydroxide Potassium hydroxide Potassium hydroxide Sodium hydroxide pH vs. Temperature for 50 mM Tris Buffer 25 *C

70. Acids And Bases CheModule Tutorials Chapter 9. The following tutorials are PowerPointChemodules that emphasize various topics in acids and bases. http://www.karentimberlake.com/acids_and_bases.htm

C heModule T utorials Chapter 9 The following tutorials are PowerPoint Chemodules that emphasize various topics in Acids and Bases. Each includes basic concepts and learning checks to test your progress. Acids and Bases Acids, Bases and Neutralization pH Strong and Weak Acids Downloading CheModules The CheModules may take 2-3 minutes to download. Within the PowerPoint module, use the forward, back, up and down arrows on your keyboard to move down the slide or to go forwards or back up. You may also use page up and page down. P owerPoint© Viewer I f you do not have PowerPoint© on your computer, you may download one of the following powerpoint viewers: http://office.microsoft.com/downloads Search for Powerpoint Viewer or go to PowerPoint Viewer 97 (2000 Release) for PowerPoint 2000 Users PowerPoint Viewer 97 (2000 Release) for PowerPoint 97 Users Learning with CheModules As you proceed in the module, study the slides. Work the short learning checks before you go to the next slide, which contains the correct answers. You may wish to take the Quiz on Acids and Bases to test your understanding of the material.

71. Acids And Bases http://genchem.chem.wisc.edu/demonstrations/Gen_Chem_Pages/14acidpage/acidmain.h

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72. Weak Acids And Bases CAcT HomePage Weak acids and bases. Skills to develop. Define a weakacid or base. Calculate the pH or pOH quickly. Weak acids and bases. http://www.science.uwaterloo.ca/~cchieh/cact/c123/wkacids.html

CAcT HomePage Weak Acids and Bases Skills to develop Define a weak acid or base. Calculate pH and pOH of a weak acid or base solution using simple formula, quadratic equation, and including autoionization of water. Calculate the pH or pOH quickly. Weak Acids and Bases Weak acids and bases are only partially ionized in their solutions, whereas strong acids and bases are completely ionized when dissolve in water. Common Weak Acids Acid Formula Formic HCOOH Acetic CH COOH Trichloroacetic CCl COOH Hydrofluoric HF Hydrocyanic HCN Hydrogen sulfide H S Water H O Conjugate acids of weak bases NH Common Weak Bases Base Formula ammonia NH trimethyl ammonia N(CH pyridine C H N ammonium hydroxide NH OH water H O HS ion HS conjugate bases of weak acids e.g.: HCOO Some common weak acids and bases are given here. Furthermore, weak acids and bases are very common, and we encounter them often both in the academic problems and in everyday life. The ionization of weak acids and bases is a chemical equilibrium phenomenon. The equilibrium principles are essential for the understanding of equilibria of weak acids and weak bases. The conjugate acid-base pairs have been discussed in Acids and Bases . In this connection, you probably realize that

73. Strong Acids And Bases Strong acids and bases. Skills to develop. Strong acids and bases. The animationhere shows the formation of H 3 + O ions and OH ions in an aqueous system. http://www.science.uwaterloo.ca/~cchieh/cact/c123/stacids.html

CAcT HomePage Strong Acids and Bases Skills to develop Give the names and formulas of some strong acids and bases. Explain the pH scale, and convert pH and [HSUP>+ Evaluate solution pH and pOH of strong acids or bases. Strong Acids and Bases The animation here shows the formation of H O ions and OH ions in an aqueous system. Acids and bases that are completely ionized when dissolved in water are called strong acids and strong bases There are only a few strong acids and bases, and everyone should know their names and properties. These acids are often used in industry and everyday life. The concentrations of acids and bases are often expressed in terms of pH, and as an educated person, you should have the skill to convert concentrations into pH and pOH. The pH is an indication of the hydrogen ion concentration, [H Strong Acids Strong acids Type Formula Hydrogen halides HCl HBr HI Oxyacids of halogens, HClO HClO HBrO HBrO HIO HIO Sulfuric acid H SO Nitric acid HNO Strong acids are acids that are completely or nearly 100% ionized in their solutions. Here are some common strong acids: Ionization of a strong acid HA can be represented by: HA = H + A x x where x is the concentration of H , [H ]. For a strong acid, [H

74. PinkMonkey.com - Chemistry Study Guide -12.5 Strong And Weak Acids And Bases 12.5 Strong and Weak acids and bases. The strength of any acid depends upon theextent to which it gives hydrogen ions in solution. PROPERTY acids bases. http://www.pinkmonkey.com/studyguides/subjects/chem/chap12/c1212501.asp

Support the Monkey! Tell All your Friends and Teachers Get Cash for Giving Your Opinions! Free College Cash 4U Advertise Here See What's New on the Message Boards today! Favorite Link of the Week. Your house from the sky! ... Tell a Friend Win a $1000 or more Scholarship to college! Place your Banner Ads or Text Links on PinkMonkey for $0.50 CPM or less! Pay by credit card. Same day setup. Please Take our User Survey The strength of any acid depends upon the extent to which it gives hydrogen ions in solution. If the concentration of H ions in a solution is high the acid is said to be strong. e.g. HCl, H SO , HNO etc. If the concentration of H ions in a solution is low the acid is said to be weak. e.g. Oxalic, tartaric, H CO etc. Similarly, strong bases are those, which when dissolved in water, readily give OH ions. e.g. NaOH, KOH On the other hand, weak bases are those which when dissolved in water ionize to a small extent (do not readily give OH ions).

75. PinkMonkey.com - Chemistry Study Guide -12.4 Lewis Acids And Bases 12.4 Lewis acids and bases. An acid is any substance (molecule, ion or atom)that can accept a lone pair of electrons to form a coordinate bond. http://www.pinkmonkey.com/studyguides/subjects/chem/chap12/c1212401.asp

Support the Monkey! Tell All your Friends and Teachers Get Cash for Giving Your Opinions! Free College Cash 4U Advertise Here See What's New on the Message Boards today! Favorite Link of the Week. Your house from the sky! ... Tell a Friend Win a $1000 or more Scholarship to college! Place your Banner Ads or Text Links on PinkMonkey for $0.50 CPM or less! Pay by credit card. Same day setup. Please Take our User Survey An acid is any substance (molecule, ion or atom) that can accept a lone pair of electrons to form a co-ordinate bond. A base is any species (molecule or ion) that can donate a lone pair of electrons to form a co-ordinate bond. next page Index 12.1 - Lowry and Bronsted Concept 12.2 - Conjugate Acid Base Pairs ... 12.3 - Amphoteric Substance 12.4 - Lewis Acids and Bases 12.5 - Strong and Weak Acids and Bases 12.6 - Dissociation 12.7 - Ostwald's Dilution Law 12.8 - Hydrogen Ion Concentration : pH ... Chapter 13 7187 PinkMonkey users are on the site and studying right now. Search: All Products Books Popular Music Classical Music Video DVD Electronics Software Outdoor Living Cell Phones Keywords:

76. Dissociation Constants For Common Acids And Bases This page contains the name, formula and up to three values of pKa or pKb forcommon acids and bases. pfunctions for common acids and bases (at 25 o C) http://www.csudh.edu/oliver/chemdata/data-ka.htm

This page has been visited times since October 9, 1997 p-functions for common acids and bases (at 25 o C) acid formula pK pK pK acetic HC H O acetylsalicylic C H O COOH acrylic HC H O aluminum ion Al arsenic H AsO arsenous HAsO ascrobic H C H O benzoic C H COOH boric H BO bromoacetic HC H BrO butyric HC H O carbonic H CO chloroacetic CH ClCOOH chlorous HclO chromium ion Cr cinnamic HC H O citric H C H O cyanic HCNO cyanuric HC H N O dichloroacetic HC HCl O fluoroacetic HC H FO formic HCOOH germanic H GeO hydrazoic HN hydrocyanic HCN hydrofluoric HF hydrogen peroxide H O hydroselenic H Se hydrosulfuric H S hydrotelluric H Te hypobromous HBrO hypochlorous HClO hypoiodous HIO hyponitrous H N O hypophosphorous H PO iodic HIO iodoacetic HC H IO iron(II)ion Fe iron(III)ion Fe lactic HC H O maleic HOOCCH:CHCOOH malonic H C H O nitrous HNO oxalic H C O phenol HOC H phosphoric H PO phosphorous H PO phthalic H C H O proprionic HC H O salicylic HC H O selenic H SeO selenous H SeO succinic H C H O sulfuric H SO none sulfurous H SO thiophenol HSC H trichloroacetic HC Cl O zinc ion Zn base formula pK pK ammonia NH aniline C H NH codeine C H O N diethylamine (C H NH dimethylamine (CH NH ethylamine C H NH hydrazine N H hydroxylamine HONH methylamine CH NH morphine C H O N piperidine C H N pyridine C H N quinoline C H N triethanolamine C H O N triethylamine (C H N trimethylamine (CH N

77. Concentrations Of Common Commercial Acids And Bases This page contains the name, formula, molar mass, molarity, grams per liter,percent by weight and density of many commercial acids and bases. http://www.csudh.edu/oliver/chemdata/acid-str.htm

Properties of Commercial Acids and Bases NAME , Formula Molar Mass Mol/L (Molarity) (Grams solute)/L % by Mass Density (g/mL) acetic acid, glacial, HC H O acetic acid, dilute HC H O butyric acid , HC H O formic acid ,HCO H hydroiodic acid , HI hydrobromic acid , HBr hydrochloric , HCl hydrocyanic acid . HCN hydrofluoric acid , HF hypophosphorous acid , H PO lactic acid , HC H O nitric acid , HNO perchloric acid , HClO phosphoric acid , H PO sulfuric acid , H SO sulfurous acid , H SO ammonia, aqueous , NH potassium hydroxide , KOH sodium carbonate , N CO sodium hydroxide , NaOH

78. Bigchalk: HomeworkCentral: Acids & Bases (Middle School) Looking for the best facts and sites on acids bases? Lesson Plan Archives Science Physical Science Chemistry Middle School acids bases. http://www.bigchalk.com/cgi-bin/WebObjects/WOPortal.woa/Homework/Lesson_Plan/Res

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79. Bigchalk: HomeworkCentral: Acids & Bases (High School) Looking for the best facts and sites on acids bases? Lesson Plan Archives Science Physical Science Chemistry High School acids bases. http://www.bigchalk.com/cgi-bin/WebObjects/WOPortal.woa/Homework/Lesson_Plan/Res

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80. Acids And Bases In Water acids AND bases IN WATER. This lesson develops the concepts peculiarto acidbase equilibrium in water. It starts by introducing http://www.fsj.ualberta.ca/chimie/learning_tools/ACID_ACID2.html

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