When 147 ML of Aqueous HBr (A Strong Acid) Was Added

question 14

Multiple Choice

When 14.7 mL of aqueous HBr (a strong acid) was added to water, 0.482 L of a solution with a pH of 4.23 was produced. What was the molarity of the original HBr solution?

• A) 1.9 × 10^-3 M
• B) 140 M
• C) 0.288 M
• D) 0.13 M
• E) None of these choices are correct.

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Definitions:

Neutral Conductor

A conductor that carries only the imbalance of current between the live conductors in a multiphase system, and is at ground potential.

Negative-Sequence Harmonic

Causes the rotating magnetic field of a polyphase motor to rotate in a direction opposite that of the fundamental frequency.

Fundamental Frequency

The lowest frequency of a periodic waveform, representing the greatest common divisor of the frequencies of all components of the waveform.

Odd Multiples

Refers to numbers or values that are not divisible by two and are multiples of a given number, often appearing in patterns or sequences.