18. Aqueous Equilibrium
Acid-Base Indicators
3:24 minutes
Problem 81
Textbook Question
Textbook QuestionMethyl red has a pKa of 5.0 and is red in its acid form and yellow in its basic form. If several drops of this indicator are placed in a 25.0-mL sample of 0.100 M HCl, what color will the solution appear? If 0.100 M NaOH is slowly added to the HCl sample, in what pH range will the indicator change color?
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