'Base indicators' diaporamas de présentation

Chemistry 102(001) Fall 2012

Chemistry 102(001) Fall 2012. CTH 328 10:00-11:15 am Instructor : Dr. Upali Siriwardane e-mail : upali@latech.edu Office : CTH 311 Phone 257-4941 Office Hours : M,W 8:00-9:00 & 11:00-12:00 am; Tu , Th , F 8:00 - 10:00am.. Exams: 10 :00-11:15 am, CTH 328.

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Acid-Base Equilibria

Acid-Base Equilibria. Common Ion Effect in Acids and Bases Buffer Solutions for Controlling pH Buffer Capacity pH-Titration Curves Acid-Base Titration Indicators. Common Ion Effect. Shift in the equilibrium position due to the addition of an ion already involved in the equilibrium process.

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Analytical Chemistry

Analytical Chemistry. Option A Part 2: Spectroscopy (IR and UV- vis ). Spec t r o s c o py is the main method we have of probing into the atom and the molecule. Energy of electromagnetic radiation is carried in discrete packets of energy called photons or quanta. E = hf

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IX. Acids, Bases and Salts

IX. Acids, Bases and Salts. Behavior of many acids and bases can be explained by the Arrhenius theory. Arrhenius acids and bases are electrolytes. (3.1uu). An electrolyte is a substance which, when dissolved in water, forms a solution capable of conducting an.

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Acid-Base Titration and pH

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E Lesson Class X

E Lesson Class X. Chemistry. Term 1. Chapter 1. Chemical Reactions & Equations. Gists of the lesson Chemical reaction-Chemical changes or chemical reactions are the changes in which one or more new substances are formed.

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ACIDS, BASES, and SALTS

ACIDS, BASES, and SALTS. An acid is a(n) ________________ compound. Most molecular compounds, if they are soluble in water, dissolve differently from ionic compounds . C 12 H 22 O 11 (s) ? C 2 H 5 OH (l) ?.

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Acids and Bases

Acids and Bases. Biotechnology I. Life Chemistry. Based on water Cells contain 80-90% water Proper pH essential to ALL living systems Plants cannot live in poor pH soil Animals die if blood pH is abnormal Microorganisms need specific pH to grow & multiply

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8.1: A solution is a type of mixture 8.2: The amount of solute that dissolves can vary

Unit: Chemical Interactions Chapter 8 : Solutions When substances dissolve to form solutions, the properties of the mixture change. 8.1: A solution is a type of mixture 8.2: The amount of solute that dissolves can vary 8.3: Solutions can be acidic, basic, or neutral

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Ionic products of water

Ionic products of water . Water molecules can function as both acids and bases. One water molecule (acting as a base) can accept a hydrogen ion from a second one (acting as an acid). This will be happening anywhere there is even a trace of water. A hydroxonium ion and a hydroxide ion are formed.

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Acid-Base Titration

Acid-Base Titration. Arhenius Acid HA ? H? A? Acid are species that can donate proton , H? Base BOH ? B? + OH? Base are species that can donate hydroside ions , OH? Neutralisation is the reaction between an acid and a base: H? + OH? ?H?O Bronsted

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TITRATION

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Acid-Base Titrations

Acid-Base Titrations. Acid-Base Titrations. Add solution (either the acid or the base) from buret to solution in flask The concentration of one solution is known. One concentration is unknown.

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Aqueous Solutions and the Concept of pH

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20.1

20.1. Hydrogen Ions and Acidity. Section 20.2. Self-ionization - the reaction in which two water molecules produce ions. H 2 O ? H + + OH - Water Hydrogen ion hydroxide ion. H 2 O + H 2 O ? H 3 0 + + OH -

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Acids and Bases

Acids and Bases. Arrhenius Definitions: When reacting with water , Acids release hydrogen ions (ex: HNO 3 ) Bases release hydroxide ions (ex: NaOH ) Salts are ionic compounds that release neither hydrogen ions nor hydroxide ions . Episode 1101. Expanded Definitions.

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Procedure for calculating pH of a titration

Procedure for calculating pH of a titration. Volume of titrant needed is based on amount of analyte. HNO 2 ( aq ) + OH - ( aq ) NO 2 - ( aq ) + H2O ( l ). Initial ( M ). 0.01. Change ( M ). [NO 2 - ] =. = 0.05 M.

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The Autoionization of Water

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Chapter 21 Section 1

Chapter 21 Section 1. neutralization reaction - when an acid and a base react in an aqueous solution to produce a salt and water *all neutralization reactions are double-replacement ex- RS + TU ? TS + RU *must be balanced acid + base ? salt + water

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