1. Titrations SCH4U1 Unit 5

2. What is it? TITRATION is the name the technique of carefully measuring the volume of a solution required to react with another solution.

3. 1)Acid-Base Titration involve neutralization reactions. ACID + BASESALT + WATER HCl (aq) + NaOH (aq) NaCl (aq) + H 2 O (l) 2) Redox Titrations involve a transfer of electrons. Electrons moving. A - + B A + B - 2S 2 O 3 2- + I 2 S 4 O 6 2- + 2I - Types of Titrations

4. 3) Metal Chelation Titration involve the removal of metal ions by complex formation. M + + EDTA M-EDTA Ca 2+ + EDTA 4- Ca-EDTA 2- The equivalence point of a titration occurs when the stoichiometric amount of the titrant (in the buret) has been added to the sample. The end point is often shown by an indicator compound changing colour. This is how to clean glassware & titrate.clean glassware titrate

5. EDTA

6. Eriochrome Black T This indicator is used to detect the presence of dissolved metal ions.indicator The indicator is blue without Ca 2+ ions and red in the presence of Ca 2+.

7. Determining the Ksp with EDTA Write the purpose and relevant reactions. Read the procedure overview and create a complete list of materials and a step-by-step procedure for this titration. This should be detailed enough for a novice student to carry out the experiment. Create a blank observation table. HOMEWORK: FINISH THE PROCEDURE!!!!!