A KCl Solution Is Prepared by Dissolving 40

question 145

Multiple Choice

A KCl solution is prepared by dissolving 40.0 g KCl in 250.0 g of water at 25°C.What is the vapor pressure of the solution if the vapor pressure of water at 25°C is 23.76 mm Hg?

• A)20.5 mm Hg
• B)22.1 mm Hg
• C)22.9 mm Hg
• D)25.5 mm Hg

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Definitions:

Receptors

Proteins typically found on cell surfaces that bind to specific molecules, triggering a response in the cell.

Signaling Molecules

Chemicals released by cells that communicate and coordinate actions across the body or between organisms, crucial in many biological processes.

Histamine

A compound released by cells in response to injury and in allergic and inflammatory reactions, causing contraction of smooth muscle and dilation of capillaries.

Prostaglandins

A group of physiologically active lipid compounds that have diverse hormone-like effects in animals.