Matter and Change in Applied Chem

We have begun our second unit in applied chemistry: matter and change. We have begun to discuss properties of substances such as mixtures. In lab, we separated a mixture of sand, salt, iron filings, and pennies using different separation methods. The picture illustrates a funnel with filter paper held by an O-ring and a ring-stand. We filtered a mixture of sand, salt, and water through filter paper in a funnel. The sand was left over in the funnel while the salt water passed through. During the next class we calculated the mass of the sand and salt.

We've also begun density and density calculations today. Stay tuned for more updates! And please bring your calculators--- they are required for this course!!