Buffers and traons 8 ph of buffer calculate

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Unformatted text preview: neutraliza<on reac<on affects the amounts of the weak acid and its conjugate base in solu<on. 2. Use the HendersonHasselbalch equa<on to determine the new pH of the solu<on. 12 buffers and <tra<ons Calcula<ng pH Changes in Buffers A buffer is made by adding 0.300 mol HC2H3O2 and 0.300 mol NaC2H3O2 to enough water to make 1.00 L of solu<on. The pH of the buffer is 4.74. Calculate the pH of this solu<on afer 0.020 mol of NaOH is added. buffers and <tra<ons 13 pH range of a buffer: range of pH over which the buffer acts effec<vely. op<mal pH: Buffer region buffers and <tra<ons 14 Buffer Capacity Buffer capacity: volume of acid or base that can be added before the pH of the buffer changes appreciably. Which soluDon will have the greatest buffer capacity? 1M CH3COOH/CH3COONa 0.1M CH3COOH/CH3COONa buffers and <tra<ons 15 Titra<on A pH meter or indicators are used to determine when the solu<on has reached the equivalence point: In this technique a know...
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This note was uploaded on 01/18/2012 for the course CHEM 112 taught by Professor Vandersluys,lorschmid,kylem during the Summer '07 term at Penn State.

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