A Sample of Hydrochloric Acid (Approximately 0

question 97

Multiple Choice

A sample of hydrochloric acid (approximately 0.10 M) is titrated with 0.0993 M NaOH. What indicator changes color closest to the equivalence point?

• A) thymol blue (p K _In = 1.65)
• B) methyl orange (p K _In = 3.46)
• C) methyl red (p K _In = 5.00)
• D) bromthymol blue (p K _In = 7.30)
• E) phenolphthalein (p K _In = 8.7)

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Definitions:

Even Number

An even number is an integer that is exactly divisible by 2, such as 2, 4, 6, and so on.

Formula

A mathematical relationship or rule expressed in symbols.

Calculating Mean

The process of finding the average value of a set of numbers by adding them all up and dividing by the number of numbers.

Symbols

Characters or graphical representations used to represent objects, quantities, or concepts in various fields including mathematics, physics, and more.