Which of the PH Indicators from the List Above Would

question 2

Multiple Choice

Which of the pH indicators from the list above would be most appropriate for the titration of 0.30 M acetic acid (Ka = 1.8 × 10^-5) with 0.15 M sodium hydroxide?

• A) methyl orange
• B) litmus
• C) thymol blue
• D) trinitrobenzene
• E) Both thymol blue and litmus can be used.

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Definitions:

Intubation

The insertion of a tube into the body, typically to provide a passageway for air to enter and exit the lungs during anesthesia or severe illness.

Trachea

The windpipe, a tube extending from the larynx towards the lungs, providing the passage of air to the respiratory system.

Larynx

The part of the respiratory tract located in the neck that houses the vocal cords and is involved in breathing, speech, and swallowing.

Conchae

Curved bones in the nasal cavity that help to filter, warm, and moisten the air before it enters the lungs.