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Lecture 21			3/16/05

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.

By johana
(741 views)

Chemistry 100 - Chapter 17

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

By Mia_John
(547 views)

How to Interpret Titration Curves

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

By benjamin
(1405 views)

Amino acids/Proteins

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.

By sandra_john
(426 views)

SOLUTION STOICHIOMETRY LECTURE 3

SOLUTION STOICHIOMETRY LECTURE 3

SOLUTION STOICHIOMETRY LECTURE 3. ACIDS AND BASES. Arrhenius. Acids Give off H + Bases Give off OH - Substances that caused a problem??? Main example – NH 3. Br ønsted-Lowry. Came up with new definition to account for these Acids Give off (donate) protons (H + ) Bases

By seanna
(637 views)

Chapter 15 – Calculations in Chemistry: Stoichiometry

Chapter 15 – Calculations in Chemistry: Stoichiometry

Chapter 15 – Calculations in Chemistry: Stoichiometry. Stoichiometry. Stoichiometry means the study of ratios of substances. It is based on the law of conservation of mass: in a chemical reaction, the total mass of all products is equal to the mass of all reactants.

By allegra
(239 views)

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.

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.

By conner
(305 views)

How to Interpret Titration Curves

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

By melangell
(295 views)

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

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.

By antionette
(161 views)

Solution Stoichiometry

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.

By rolf
(272 views)

EDTA – An Introduction

EDTA – An Introduction

EDTA – An Introduction. CHM 103 Sinex. EDTA is e thylene d iamine t etra a cetic aicd. Six binding sites  4 H on carboxylic acid groups (H’s are removed, so –COO - ) 2 lone pairs of electrons on nitrogens. EDTA Chime structure.

By forest
(285 views)

How to Interpret Titration Curves

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

By jeanine
(712 views)

How concentrated an acid is vinegar?

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

By cherie
(147 views)

Salts in Solution

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.

By roden
(167 views)

Figure 4.18, P. 139 of text

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

By lorant
(86 views)

Titration

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.

By thea
(154 views)

Solution Stoichiometry

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

By dreama
(157 views)

Neutralization of an acid or base.

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.

By teresa
(101 views)

Taylor Walsh Shiv Patel Emily Penn Philip Adejumo

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.

By lamont
(116 views)

Unit 8: Acids and Bases

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.

By asher
(156 views)

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