titration
DESCRIPTION
chemistryTRANSCRIPT
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.22 2008
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3 . -. . .
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NaOH 0,1M, . pH .
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( ) Multilog pH / DBLab. 50mL 10mL 25mL 250mL ( ) NaOH 0,1M
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10mL 250mL. 25mL (50mL) (+ ) Multilog. Multilog 2000 10 /s. 2 /s. . 3 min. . .
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pH . , , pH . ( ) . .
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. 10mL, 1-1,5mm ( -) . - .
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( , : . ). : pH;, pH ;, pH ! ( ), pH, (), () . ;
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; . . ( ).
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(>, < = 7) . . a (pKa = pH) .
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. pH=7 ( ).
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. pH>7 ( -).
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- . pH
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NaOH. .
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Ka
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Ka (V = V/2) pH = pKa.
: pKa = 4,7 Ka = 1,810-5
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, . . NaOH CH3COOH CH3COO-. (V = V/2) pH = pKa.
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(2 mL) pH.
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1 (.) http://ekfe-n-smyrn.att.sch.gr
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