Solutions Introduction Activity Name _________________
Objective: Examine the dissolving process and compare how different substances dissolve.
Log onto a computer and Google “Phet.” Click on the first site listed, once at the site click “play with sims,” then click “Chemistry.” Find the “Sugar and Salt Solutions” simulation on the phet site and click it, then click “run now.”
Define the following terms: (use your book or the internet)
Solution-chemistry fluid with substance dissolved in it: a substance consisting of two or more substances mixed together and uniformly dispersed, most commonly the result of dissolving a solid, fluid, or gas in a liquid. It is also possible, however, to form a solution by dissolving a gas or solid in a solid or one gas in another gas
Solute- is a substance dissolved in another substance, usually the component of a solution present in the lesser amount.
Solvent- is a substance that can dissolve another substance, or in which another substance is dissolved, forming a solution. Water is the most common solvent.
Solubility- the quality or property of being soluble; relative capability of being dissolved
Concentration- is the amount of a particular substance in a given amount of another substance, especially a solution or mixture.
1. Once the simulation is up, click the “Micro” tab at the top of the simulation. There should be a salt shaker above water, if not, click the “salt” button. Shake the salt shaker.
a. As the salt falls out of the shaker what state of matter is the salt? How can you tell?
It is solid because the salt is hard.
b. Once the salt enters the water, what is its state of matter? How can you tell?
When the salt enters the water, the state of matter is liquid, and that mixture with water, and I can see it.
c. What does the salt split into when it dissolves?
Sodium and chloride
2. Click the...