Phenol Red Indicator Changes from Yellow to Red in the PH

question 120

Multiple Choice

Phenol red indicator changes from yellow to red in the pH range from 6.6 to 8.0.State what color the indicator will assume in the following solution: 0.10 M NH₄NO₃(aq) .

• A)red
• B)yellow
• C)red-yellow mixture
• D)The indicator is its original color.
• E)There is not enough information to answer this question.

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Definitions:

Prenatal Development

The process of maturing and evolving from the point of conception to birth within the uterus.

Testosterone

A steroid hormone that plays a key role in the development of male reproductive tissues and the promotion of secondary sexual characteristics.

Estrogens

The principal class of female sex hormones.

Secondary Sex Characteristics

Physical features that emerge during puberty, distinguishing the two sexes from each other but not directly involved in reproduction, such as breast development in females and facial hair in males.