What Is the Molarity of a Solution Prepared by Diluting

question 43

Multiple Choice

What is the molarity of a solution prepared by diluting 25.0 mL of 0.220 M NaCl to a final volume of 75.0 mL?

• A) 0.0733 M NaCl
• B) 0.220 M NaCl
• C) 0.660 M NaCl
• D) 1.52 M NaCl
• E) 13.6 M NaCl

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Definitions:

Facilitated Diffusion

A process in which substances move across cell membranes with the help of carrier proteins, without the expenditure of energy.

Osmosis

The diffusion of water through a semipermeable membrane from a region of low solute concentration to a region of high solute concentration.

Simple Diffusion

The movement of molecules from an area of high concentration to an area of low concentration without the need for energy input, often across a permeable membrane.

Phagocytosis

The process by which cells engulf large particles or microorganisms, breaking them down within phagosomes, contributing to cellular defense and nutrient acquisition.