Multiple Choice
Which of the following best describes the difference between aqueous solutions of a strong acid and a weak acid?
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14. Solutions
Types of Aqueous Solutions
Multiple Choice
In the context of types of aqueous solutions, (5% dextrose in water) is best classified as which type of solution?
A
A buffered aqueous solution containing a weak acid and its conjugate base
B
An aqueous (water-based) solution in which dextrose is the solute
C
A colloidal suspension of dextrose particles in water
D
A saturated aqueous solution of dextrose at room temperature
Verified step by step guidance1
Understand the components of the solution: D5W stands for 5% dextrose in water, meaning 5 grams of dextrose (a type of sugar) are dissolved in 100 mL of water.
Recall the definitions of solution types: a solution is a homogeneous mixture where the solute is completely dissolved in the solvent; a colloidal suspension contains larger particles dispersed but not fully dissolved; a saturated solution contains the maximum amount of solute dissolved at a given temperature.
Analyze the nature of dextrose in water: since dextrose is a small molecule that dissolves completely in water, the mixture is homogeneous and not a suspension or colloid.
Consider whether the solution is buffered: a buffered solution contains a weak acid and its conjugate base to resist pH changes, which is not the case for D5W.
Conclude that D5W is best classified as an aqueous solution where dextrose is the solute dissolved in water, making it a true solution rather than a suspension, colloid, or buffer.
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