HISTORY 1M03 Lecture Notes - Lecture 10: Protonation, Amine, Analyte
25 Apr 2021
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Solvent = a substance that dissolves a solute resulting in a solution. Water is amphiprotic = can act as either acid or base. The equilibrium will lie to the left (strong acid weak acid) so at any time, there is a small amount of hydronium and hydroxide ions present. This is when water breaks into its ions (not favored) Pure water has a concentration of 55. 5m at 25 c. Greater [h+], lower the ph = more acidic. Module 2b water, ph, and solutions pka and pkb weak acids + bases. Titrating a weak acid with a strong base. Titration = the slow addition of one solution of a known concentration (titrant) to a known volume of another solution of unknown concentration (analyte) until the reaction reaches neutralization (color change) A buffer is a solution that resists changes in ph. Suppose a biochemist wants to study a reaction at ph 4. 0.
