Lec-26-Chap16-7-bare

Lec-26-Chap16-7-bare - Lec-26-Chap16-7-bare 11/2/2011...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Lec-26-Chap16-7-bare 11/2/2011 Acid-Base Titrations 1 Lec-26: Buffer Solutions. Titrations Chapter 16 1 Acid-Base Titrations Provides a method in the laboratory to determine the concentration of an acid or a basic sample solution. It relies on the neutralization of the acid or basic sample solution by addition of, respectively, a basic or acid solution of known concentration.     titrant sample sam moles of base or moles of acid or titr e pl ant n n   The equivalence point is reached when the stoichiometric amount of titrant has been added. 2
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lec-26-Chap16-7-bare 11/2/2011 Acid-Base Titrations 2 Equivalence Point Condition For a monoprotic acid HA in the ( sample or titrant ) and a monohydroxide base MOH in the ( titrant or sample ) AA BB V CV C We can find the concentration of the acid (say it was in the sample) by solving the above equation B A A B V C C V 3     titrant sample sam moles of base or moles of acid or titr e pl ant n n   Detection of the equivalence point: the color change of an acid-base indicator can be used to detect when sufficient volume of titrant has been added. Before reaching the end point After reaching the end point 4 Equivalence point: reached when the stoichiometric amount of titrant has been added.     titrant sample sam moles of base or moles of acid or titr e pl ant n n
Background image of page 2
Lec-26-Chap16-7-bare 11/2/2011 Acid-Base Titrations 3 Acid-Base Indicators Acid-base indicators are typically weak organic acids:         3 color 1 2 color 2 I HIn aq H H O aq aq O n  Red Yellow methyl red indicator 5 Acid-Base Indicators    
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/06/2012 for the course CHE 132 taught by Professor Hanson during the Fall '08 term at SUNY Stony Brook.

Page1 / 11

Lec-26-Chap16-7-bare - Lec-26-Chap16-7-bare 11/2/2011...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online