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Which is the best colored indicator to use in the titration of 0.1MCH_(3)CO_(2)H(aq) with NaOH(aq) ? Why? of CH_(3)CO_(2)H=1.8E-5,K_(b) of { ( :CH_(3)CO_(2)-5.6E-10) } table[[Indicator,
Which is the best colored indicator to use in the titration of
0.1MCH_(3)CO_(2)H(aq)
with
NaOH(aq)
? Why? of
CH_(3)CO_(2)H=1.8E-5,K_(b)
of
{
(
:CH_(3)CO_(2)-5.6E-10)
}\ \\\\table[[Indicator,
pK_(a)
Which is the best colored indicator to use in the titration of 0.1 M CH3COH(aq) with NaOH(aq)? Why? (Ka of CH3CO2H 1.8E-5, K of CH3CO2-5.6E-10) Indicator Bromcresol Green Bromthymol Blue Phenolphthalein pka 4.8 6.8 9.2 Phenolphthalein. The pKa of CH3CO2 and the pK of the indicator are similar. O Phenolphthalein. The pH at the equivalence point is near the pKa of the indicator. Bromthymol Blue. The pH at the equivalence point is 7.0. O Bromcresol Green. The equivalence point for a weak acid titration occurs at low pH. Bromcresol Green. The pKa of CH3CO2H and the pKa of the indicator are similar.
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