Methyl Red Is a Common Acid-Base Indicator

question 113

Multiple Choice

Methyl red is a common acid-base indicator. It has a K_a equal to 6.3 * 10^-6. Its un-ionized form is red and its anionic form is yellow. What color would a methyl red solution have at pH = 7.8

• A) green
• B) red
• C) blue
• D) yellow
• E) violet

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