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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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jcarpp jcarpp
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methyl orange: red at pH < 3.1:  orange at pH 3.1-4.4:  yellow-orange above pH 4.4
litmus:  red at pH < 4.5:  purple at pH 4.5-8.3: blue above pH 8.3
thymol blue:  yellow at pH < 8.0:  green at pH 8.0-9.6:  blue above pH 9.6
trinitrobenzene:  colorless at pH < 12:  yellow at pH 12.0-1:  orange above pH 14.0

Which of the pH indicators from the list above would be most appropriate for the titration of 0.30 M aqueous acetic acid (Ka = 1.8 × 10-5) with 0.15 M aqueous sodium hydroxide?

▸ methyl orange

▸ litmus

▸ thymol blue

▸ trinitrobenzene

▸ Both thymol blue and litmus can be used.
Textbook 
General Chemistry: Principles and Modern Applications

General Chemistry: Principles and Modern Applications


Edition: 11th
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sel0814sel0814
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jcarpp Author
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2 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
julymontalvo
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Smart ... Thanks!
kiara23247843
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2 hours ago
Helped a lot
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