Propose a synthesis for 3,5-dibromo-2-hydroxybenzoic acid (3,5-dibromosalicylic acid)from phenol.
Note Set #2 – week 4 Analytical Chemistry PH BUFFERS Buffer: a chemical solution containing significant amounts of a weak acid/base pair that resists large changes in pH o Even when diluted o In the presence/addition of strong acid or base Generally, buffers will work within +/- 1 pH unit of the pH you are trying to maintain, this is the buffering range o For example, if you are trying to maintain a solution around pH 4.5, a buffer of acetic acid/acetate solution has a pKa of 4.75, so it would be able to buffer solutions within a range of 3.75 – 5.75 pH FRACTIONAL COMPOSITION F total [HA] + [A-] o F totals the formal concentration of a solution; the concentration of the original
