A Solution Is Prepared by Dissolving 15

question 32

Multiple Choice

A solution is prepared by dissolving 15.0 g of NH₃ in 250 g of water. The density of the resulting solution is 0.974 g/mL. The mole fraction of NH₃ in the solution is _ _.

• A) 0.0597
• B) 0.922
• C) 0.940
• D) 0.0640
• E) 16.8

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Definitions:

Metatarsals

The five long bones located in the forefoot between the ankle and the toes.

Cranial Bones

The bones that form the skull, protecting the brain and supporting the structures of the face.

Osteoblasts

Osteoblasts are cells with a key role in bone formation, responsible for synthesizing and mineralizing bone tissue.

Palmar Bones

The set of bones forming the framework of the palm of the hand, also known as the carpal bones.