Like Dissolves Like - Multimedia Experiments

Some substances dissolve readily in others. Some substances do not. Some substances are more dense than others. This chapter deals with the concepts of solubility and density.

Two alternative approaches are available. On one hand you can simply view a movie that demonstrates the concepts. On the other hand you can perform/watch a series of experiments that will encourage you to think actively about the concepts.

After viewing the video, answer the questions at the bottom of the page.

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Keywords

solubility, density, polar, nonpolar, soluble, insoluble, bonding, solutions

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Experiments

There are a total of six experiments you can view. You can view them in any order, as many times as you wish. Each experiment has three steps.

	Step 1	Step 2	Step 3
Experiment A	Begin with liquid 1, add Powder	add liquid 2	add liquid 3
Experiment B	Begin with liquid 1, add Powder	add liquid 3	add liquid 2
Experiment C	Begin with liquid 2, add Powder	add liquid 1	add liquid 3
Experiment D	Begin with liquid 2, add Powder	add liquid 3	add liquid 1
Experiment E	Begin with liquid 3, add Powder	add liquid 1	add liquid 2
Experiment F	Begin with liquid 3, add Powder	add liquid 2	add liquid 1

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Questions

These experiments involve four species, identified as "Powder", "Liquid 1", "Liquid 2", and "Liquid 3". After viewing the experiments, answer the following questions. (Note, you can return to the experiments by scrolling up this page.)

Is Powder soluble in Liquid 1 Yes?No?	Is Powder soluble in Liquid 2 Yes?No?	Is Powder soluble in Liquid 3 Yes?No?
	Is Liquid 1 miscible with Liquid 2 Yes?No?	Is Liquid 1 miscible with Liquid 3 Yes?No?
		Is Liquid 2 miscible with Liquid 3 Yes?No?

Which is more dense, Powder or Liquid 1?	Which is more dense, Powder or Liquid 2?	Which is more dense, Powder or Liquid 3?
	Which is more dense, Liquid 1 or Liquid 2 ?	Which is more dense, Liquid 1 or Liquid 3 ?
		Which is more dense, Liquid 2 or Liquid 3 ?

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Discussion

Additional still images for this topic

Demonstration Notes: Warnings, Safety Information, etc.

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Exam and Quiz Questions

1. What can you conclude about the density of the mixture of liquids 2 and 3?

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Demonstration approach to this topic

Next sequential topic

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