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From the list of acid-base indicators below, select the one BEST indicator for a titration with an equivalence point at pH 2.1 (BE CAREFUL--enter indicator name EXACTLY as it appears in table): Indicator pKa Acid color Base color Methyl violet 0.80 Yellow Blue 1.0 Red Yellow Cresol red Malachite green Thymol blue Yellow Blue-green Yellow 1.3 1.7 Red Phloxine 1.8 Colorless Pink Orange IV Benzopurpurin Methyl yellow Methyl orange Bromophenol blue Congo red Dinitrophenol Alpha-Naphthyl red Bromocresol green Methyl red Ethyl red Azolitmin (litmus) Bromocresol purple Bromothymol blue Nitrophenol Phenol red Red Yellow 2.1 2.8 Violet Red 3.3 Red Yellow 3.7 Red Yellow Blue-violet Red Yellow Yellow 4.0 Yellow 4.1 Blue 4.1 Colorless 4.3 Red 4.7 Yellow Blue Red Yellow 5.1 5.4 Colorless red 5.8 Red Blue 6.3 Yellow Violet Blue Yellow Colorless 7.0 7.2 Yellow 7.9 Yellow Red blue Yellow Colorless 8.9 Thymol blue Phenolphthalein Alizarin yellow R 9.4 Red 11.0 Yellow red

From the list of acid-base indicators below, select the one BEST indicator for a titration with an equivalence point at pH 2.1 (BE CAREFUL--enter indicator name EXACTLY as it appears in table): Indicator pKa Acid color Base color Methyl violet 0.80 Yellow Blue 1.0 Red Yellow Cresol red Malachite green Thymol blue Yellow Blue-green Yellow 1.3 1.7 Red Phloxine 1.8 Colorless Pink Orange IV Benzopurpurin Methyl yellow Methyl orange Bromophenol blue Congo red Dinitrophenol Alpha-Naphthyl red Bromocresol green Methyl red Ethyl red Azolitmin (litmus) Bromocresol purple Bromothymol blue Nitrophenol Phenol red Red Yellow 2.1 2.8 Violet Red 3.3 Red Yellow 3.7 Red Yellow Blue-violet Red Yellow Yellow 4.0 Yellow 4.1 Blue 4.1 Colorless 4.3 Red 4.7 Yellow Blue Red Yellow 5.1 5.4 Colorless red 5.8 Red Blue 6.3 Yellow Violet Blue Yellow Colorless 7.0 7.2 Yellow 7.9 Yellow Red blue Yellow Colorless 8.9 Thymol blue Phenolphthalein Alizarin yellow R 9.4 Red 11.0 Yellow red

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question 3 From the list of acid-base indicators below, select the one BEST indicator for a titration with an equivalence point at pH 2.1 (BE CAREFUL--enter indicator name EXACTLY as it appears in table): Indicator pKa Acid color Base color Yellow Methyl violet Cresol red 0.80 Blue 1.0 Red Yellow Malachite green Thymol blue Phloxine Yellow Red 1.3 Blue-green Yellow 1.7 Pink Yellow 1.8 Colorless Red Orange IV Benzopurpurin Methyl yellow Methyl orange Bromophenol blue Congo red Dinitrophenol Alpha-Naphthyl red Bromocresol green Methyl red Ethyl red Azolitmin (litmus) Bromocresol purple Bromothymol blue Nitrophenol 2.1 2.8 Violet Red 3.3 Red Yellow 3.7 Red Yellow Blue-violet Red Yellow 4.0 Yellow 4.1 Blue 4.1 Colorless 4.3 Red Yellow 4.7 Yellow Blue 5.1 Red Yellow 5.4 Colorless red 5.8 Red Blue 6.3 Yellow Violet 7.0 Yellow Blue 7.2 Colorless Yellow Red Yellow Yellow Colorless Phenol red 7.9 blue Thymol blue Phenolphthalein Alizarin yellow R 8.9 9.4 Red 11.0 Yellow red
Transcribed Image Text:Question 3 From the list of acid-base indicators below, select the one BEST indicator for a titration with an equivalence point at pH 2.1 (BE CAREFUL--enter indicator name EXACTLY as it appears in table): Indicator pKa Acid color Base color Yellow Methyl violet Cresol red 0.80 Blue 1.0 Red Yellow Malachite green Thymol blue Phloxine Yellow Red 1.3 Blue-green Yellow 1.7 Pink Yellow 1.8 Colorless Red Orange IV Benzopurpurin Methyl yellow Methyl orange Bromophenol blue Congo red Dinitrophenol Alpha-Naphthyl red Bromocresol green Methyl red Ethyl red Azolitmin (litmus) Bromocresol purple Bromothymol blue Nitrophenol 2.1 2.8 Violet Red 3.3 Red Yellow 3.7 Red Yellow Blue-violet Red Yellow 4.0 Yellow 4.1 Blue 4.1 Colorless 4.3 Red Yellow 4.7 Yellow Blue 5.1 Red Yellow 5.4 Colorless red 5.8 Red Blue 6.3 Yellow Violet 7.0 Yellow Blue 7.2 Colorless Yellow Red Yellow Yellow Colorless Phenol red 7.9 blue Thymol blue Phenolphthalein Alizarin yellow R 8.9 9.4 Red 11.0 Yellow red
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