Lecture 12 - hen what you mix is not what you get When what...

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Chapter 9 Monoprotic Acid-Base Equilibria Solution of quadratic equation: aX 2 + bX +c =0 ac b b 4 2 ± 1. Strong acids and bases. a x 2 = 2. Weak acids 3. Weak bases ote: We will have Exam II next Thursday 4. Buffers Note: We will have Exam II next Thursday Feb. 26, 2009, it covers Chapter 6-10.
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4. Buffers Buffers
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Example: Tris buffer: tris (hydroxy methyl)aminomethane nd pH of a solution prepared with issovling 2.43 g of is M 121.135) plus 4.67 g Find pH of a solution prepared with dissovling 12.43 g of tris (FM 121.135) plus 4.67 g of tris hydrochloride (FM 157.596) in 1.00 L of water. What the pH will be of x mL of 1.00 M HCl is added.
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uffer capacity: Buffer capacity: C C dpH dC dpH dC a b = = β C a and C b the moles of acid and base Are added, respectively.
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Unformatted text preview: hen what you mix is not what you get When what you mix is not what you get---K a is too large, and/or F A is too small. What will ne the ph of 0.0100 mol of HA (with pKa = 2.00) and 0.0100 M of A are dissolved in water to make 1.00 L of solution? hapter 10 Polyprotic cid- ase Equilibria C apte o yp ot c ac d base qu b a Diprotic acid and bases Diprotic buffers Polyprotic acid and bases Principle Species, isoelectric point and isoionic pH Diprotic acid and bases Calculate the pH of 0.0500 M H2L + . Diprotic acid and bases Calculate the pH of 0.0500 M H2L + . The intermediate form, HL? Calculate the pH of 0.0500 M HL....
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This note was uploaded on 09/10/2009 for the course CHM 3120 taught by Professor Harrison during the Spring '08 term at University of Florida.

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Lecture 12 - hen what you mix is not what you get When what...

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