A certain indicator, HA, has a Ka value of 3.2×10−5. The protonated form of the indicator is red and the ionized form is yellow. What is the pKa of the indicator? a) pKa= b) what is the color of this indicator in a solution with pH = 7?  -orange  -red -yellow

Q: The indicator ethyl red has Kₐ=3.8X10⁻⁶. Over what ap-proximate pH range does it change color?

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Q: The indicator ethyl orange is an acid with a Ka of 4.6 ✕ 10−5. In a 1.9 ✕ 10−4 M solution, it is red…

A: The change in color of ethyl orange, when the pH of solution is changed, shown below.

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Q: Define the following 1. Equivalence point 2. End point 3. Indicator

A: The given terms can be defined as follows:

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Q: A 0.100 M solution of an acid, HA, has a pH = 1.52. What is the KA value for this acid?

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Q: 3. Write an appropriate indicator given the following equivalence points Equivalence Point pH 2 pH 4…

A:

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.