Which of the Following Indicators Would Be the Best to Use

question 36

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 M NaOH?

• 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:

Identification

The process of associating oneself with certain groups, ideals, or characteristics, often as a part of developing a sense of self.

Reinforcement

The process by which a behavior is strengthened, increasing the likelihood that the behavior will be repeated.

Role Conflict

A situation where an individual faces incompatible demands or expectations from different roles they occupy, leading to stress or difficulty in fulfilling those roles effectively.

Gender Constancy

A cognitive understanding developed in early childhood that one’s gender identity is fixed and consistent over time and situations.