Some KCl Is Dissolved in Water at 25 ^$\circ$ C, Where It Completely Dissociates

question 58

Multiple Choice

Some KCl is dissolved in water at 25 ^$\circ$ C, where it completely dissociates. The vapor pressure of pure water at 25 ^$\circ$ C is 28.3 mmHg. Estimate the mass in grams of KCl needed per liter of pure water to reduce the vapor pressure of water at 25 ^$\circ$ C by 5%.

• A) 110 g
• B) 120 g
• C) 130 g
• D) 140 g
• E) None of the above

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Definitions:

Vestibular Sense

The sensory system that contributes to balance and spatial orientation, providing the leading contribution about movement and sense of equilibrium.

Somatosensory Cortex

The somatosensory cortex is a part of the brain responsible for processing sensory information from various parts of the body, including touch, temperature, and pain.

Cerebellum

is a part of the brain located at the back of the skull, crucial for motor control, posture, and balance.

Frontal Lobes

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