What is the pH of the solution given the following information? Methyl orange = yellowMethyl red = yellowBromothymol blue = green Note: use the provided reference table for color indicators below as a guide pH 5 pH 8 pH 7 pH 6 • Low pH color • Transition pH range • High pH color +blue-violetIndicatorGentian violet (Methyl violet 10B)yellow0.0-2.0Leucomalachite green (first transition)yellow0.0-2.0greenLeucomalachite green (second transition) green11.6–14colorlessThymol blue (first transition)red1.2-2.8yellowblueThymol blue (second transition)Methyl yellowBromophenol blueCongo redyellow8.0-9.6red2.9-4.0yellowyellow3.0-4.6purpleblue-violet3.0-5.0redMethyl orangered3.1-4.4yellowScreened methyl orange (first transition)Screened methyl orange (second transition) greyBromocresol greenred0.0-3.2grey3.2-4.2greenyellow3.8-5.4blueMethyl redred4.4-6.2yellowAzolitminred4.5-8.3blueBromocresol purpleyellow5.2-6.8purpleBromothymol blueyellow6.0-7.6bluePhenol redyellow6.4-8.0redNeutral redred6.8-8.0yellowNaphtholphthaleincolorless to reddish7.3-8.7greenish to blueCresol Redyellow7.2-8.8reddish-purplePhenolphthaleincolorless8.3-10.0fuchsiaThymolphthaleincolorless9.3-10.5blueAlizarine Yellow Ryellow10.2-12.0red

Methyl orange = yellow; from reference table, color Red…<3.1-4.4<Yellow Methyl red = yellow;…

Indicator Low pH color • Transition pH range • High pH color • blue-violet green Gentian violet (Methyl violet 10B) Leucomalachite green (frst transition) Leucomalachite green (second transition) green Thymol blue (first transition) yellow 0.0-2.0 yellow 0.0-2.0 11.6-14 colorless red 1.2-2.8 yellow Thymol blue (second transition) yellow 8.0-9.6 blue Methyl yellow Bromophenol blue Congo red Methyl orange red 2.9-4.0 yellow yellow blue-violet red 3.0-4.6 purple 3.0-5.0 red 3.1-4.4 yellow Screened methyl orange (first transition) red 0.0-3.2 grey green blue Screened methyl orange (second transition) grey Bromocresol green Methyl red Azolitmin Bromocresol purple Bromothymol blue Phenol red 3.2-4.2 yellow 3.8-5.4 red red 4.4–6.2 yellow 4.5-8.3 blue yellow 5.2-6.8 purple yellow 6.0-7.6 blue yellow 6.4-8.0 red Neutral red red 6.8-8.0 yellow Naphtholphthalein colorless to reddish 7.3-8.7 greenish to blue Cresol Red yellow colorless colorless 7.2-8.8 reddish-purple Phenolphthalein 8.3-10.0 fuchsia Thymolphthalein Alizarine Yellow R 9.3-10.5 blue yellow 10.2-12.0 red

Indicator Low pH color • Transition pH range • High pH color • blue-violet green Gentian violet (Methyl violet 10B) Leucomalachite green (frst transition) Leucomalachite green (second transition) green Thymol blue (first transition) yellow 0.0-2.0 yellow 0.0-2.0 11.6-14 colorless red 1.2-2.8 yellow Thymol blue (second transition) yellow 8.0-9.6 blue Methyl yellow Bromophenol blue Congo red Methyl orange red 2.9-4.0 yellow yellow blue-violet red 3.0-4.6 purple 3.0-5.0 red 3.1-4.4 yellow Screened methyl orange (first transition) red 0.0-3.2 grey green blue Screened methyl orange (second transition) grey Bromocresol green Methyl red Azolitmin Bromocresol purple Bromothymol blue Phenol red 3.2-4.2 yellow 3.8-5.4 red red 4.4–6.2 yellow 4.5-8.3 blue yellow 5.2-6.8 purple yellow 6.0-7.6 blue yellow 6.4-8.0 red Neutral red red 6.8-8.0 yellow Naphtholphthalein colorless to reddish 7.3-8.7 greenish to blue Cresol Red yellow colorless colorless 7.2-8.8 reddish-purple Phenolphthalein 8.3-10.0 fuchsia Thymolphthalein Alizarine Yellow R 9.3-10.5 blue yellow 10.2-12.0 red

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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