'Equivalence point' presentation slideshows

Chemistry 100 - Chapter 17

Chemistry 100 - Chapter 17 . Applications of Aqueous Equilbria. The Common Ion Effect. Add sodium format e (HCOONa) to a solution of formic acid (HCOOH) that has already established equilibrium? HCOOH (aq) ? H + (aq) + HCOO - (aq) weak acid

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Amino acids/Proteins

Amino acids/Proteins. Four Critical Biological Molecules. Sugars --------> polysaccharides Nucleotides --------> nucleic acids Fatty Acids --------> Lipids Amino acids -------> proteins. Amino Acids . Carboxyl. a. Amino. Sterioisomers.

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Unit 8: Acids and Bases

Unit 8: Acids and Bases. Part 5: Titrations & Indicators. Titrations. Commonly used to determine the amount of acid or base in a solution. Complete by adding a solution of known concentration until the substance being tested is consumed.

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Solution Stoichiometry

Solution Stoichiometry . Electrolytes, Acid/Base Reactions, and Stoichiometry . Electrolytes . Defining and Identifying . Electrolytes . Where or in what context have you heard this term used? Define Electrolyte A substance whose aqueous solutions contain ions

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Taylor Walsh Shiv Patel Emily Penn Philip Adejumo

Acid-Base Titrations. Chapter 17-4. Taylor Walsh Shiv Patel Emily Penn Philip Adejumo. Objectives. Be able to read a titration curve Understand how titrations work Perform titration calculations. Introduction.

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How to Interpret Titration Curves

How to Interpret Titration Curves. find the equivalence point it is the steepest part of the curve where the pH rises the fastest the equivalence point can be used to determine the equivalent weight (molar mass) of the acid find the mid point located in the center of the buffer region

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How to Interpret Titration Curves

How to Interpret Titration Curves. find the equivalence point it is the steepest part of the curve where the pH rises the fastest the equivalence point can be used to determine the equivalent weight (molar mass) of the acid find the mid point located in the center of the buffer region

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How to Interpret Titration Curves

How to Interpret Titration Curves. find the equivalence point it is the steepest part of the curve where the pH rises the fastest the equivalence point can be used to determine the equivalent weight (molar mass) of the acid find the mid point located in the center of the buffer region

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Titration

Lab 20- Acids & Bases. Titration. A. Neutralization. Chemical reaction between an acid and a base. Products are a salt (ionic compound) and water. Neutralization. ACID + BASE ? SALT + WATER. HCl + NaOH ? NaCl + H 2 O. strong. strong. neutral.

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Salts in Solution

Salts in Solution . Mrs. Coyle. Solutions of Salts -Strong Acids and Strong Bases. Produce a neutral solution (pH=7) Example: HCl + NaOH ? NaCl + H 2 O Strong Acid Strong Base Neutral Solution. Solutions of Salts -Strong Acids and Weak Bases.

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SOLUTION STOICHIOMETRY LECTURE 3

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Calculate the pH of a solution that is 0.20 M in NaCH 3 COO and 0.10 M in CH 3 COOH.

Calculate the pH of a solution that is 0.20 M in NaCH 3 COO and 0.10 M in CH 3 COOH. 4.63 4.74 4.95 5.05 5.22. Calculate the pH of a solution that is 0.12 M in HOCl and 0.20 M in NaOCl. 6.76 6.32 7.24 7.68 7.76.

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Lecture 21 3/16/05

Lecture 21 3/16/05 Quiz 3/18/05 1 ) For the titration of 100 mL of 0.15 M HCl with 0.1 M NaOH, fill in the table. 2) Why does adding water to a buffer solution not change the pH? Give the identity and concentration of the titrated sample (50 mL) represented by the blue line.

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A solution that contains a weak acid/conjugate base mixture or weak base/conjugate acid mixture.

Buffer Solutions. A solution that contains a weak acid/conjugate base mixture or weak base/conjugate acid mixture. Resists changes in pH when a moderate amount of acid or base is added to it Made two ways: Weak acid and one of its salts OR Weak base and one of its salts.

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Neutralization of an acid or base.

Neutralization of an acid or base. Mixing acids and bases. ~creates water H 3 O + + OH - ? 2 H 2 O this is called neutralizing the solution a neutralized solution is no longer dangerous. The point where neutralization is complete is called the equivalence point. Salts.

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Solution Stoichiometry

Solution Stoichiometry. Solution Stoichiometry uses molarity as a conversion factor between volume and moles of a substance in a solution. Solution Stoichiometry. Titration: A technique for determining the concentration of a solution. Titrations.

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How concentrated an acid is vinegar?

How concentrated an acid is vinegar?. A simple titration experiment. The big idea. Acids and bases neutralize each other A base of known concentration can be used to determine the concentration of an unknown acid At the equivalence point, the moles of acid and base molecules are exactly equal

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Figure 4.18, P. 139 of text

4.6: Solution Stoichiometry and Chemical Analysis. Figure 4.18, P. 139 of text. Titration Terms. Titration: Controlled combination of a solution of unknown concentration with a solution of known concentration Primary Standard: A relatively pure compound with a high molar mass

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