Which of the Following Indicators Would Be the Best to Use

question 100

Multiple Choice

Which of the following indicators would be the best to use when 0.050 M benzoic acid (K_a = 6.6 × 10⁻⁵) is titrated with 0.05 MNaOH?

• A)Bromphenol blue, pH range: 3.0-4.5
• B)Bromcresol green, pH range: 3.8-5.4
• C)Alizarin, pH range: 5.7-7.2
• D)Phenol red, pH range: 6.9-8.2
• E)Phenolphthalein, pH range: 8.0-10.1

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Definitions:

Test Driver

A piece of code used primarily to verify the correctness of another piece of code, often used in the development process to perform unit testing.

Rectangle Class

A class in programming that is used to create objects representing rectangular shapes, often providing attributes such as length and width.

Instance Variables

Variables that, when declared within a class, ensure that every object instantiated from that class maintains its own distinct copy of these variables.

Member Method

A function defined within a class in object-oriented programming that can manipulate or access the object's data members.