Which of the Following Indicators Is Most Suitable for the Titration

question 134

Multiple Choice

Which of the following indicators is most suitable for the titration of a 25.00-mL sample of 0.140 M propionic acid,HC₃H₅O₂,with strong base?

• A)alizarin yellow (transition pH range: 10.0-12.0)
• B)methyl red (transition pH range: 4.2-6.3)
• C)methyl orange (transition pH range: 3.1-4.4)
• D)thymol blue (transition pH range: 8.0-9.6)
• E)bromothymol blue (transition pH range: 6.2-7.6)

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