10
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Lab: Solubility

Question 10 • AA-F26 Physical Science

You are in a laboratory creating a new chocolate bar. You want to create the sweetest chocolate bar by maximizing the sugar concentration. You are doing this by adding the sugar to a chocolate mixture. Which would allow you to dissolve more sugar?

Answer
A
Stir the sugar more vigorously.
B
Add the sugar after heating the mixture.
C
Add the sugar after cooling the mixture.
D
Decrease the particle size of the sugar.

Explanation

Heating the chocolate mixture generally increases how much sugar can dissolve in it, so adding sugar while the mixture is hot allows a greater amount to dissolve. Stirring more vigorously and reducing the sugar’s particle size can make it dissolve faster, but they do not increase the maximum amount that dissolves. Cooling the mixture generally reduces sugar’s solubility.

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