Unit 1 - Classification of Matter

Learning Objectives for this unit:

Classification of matter:

• • Classify matter as either a mixture or pure substance.

  • Classify mixtures as heterogeneous or homogenous.

  • Classify pure substances as elements or compounds.

Separation of Matter:

• • Describe many different ways in which mixtures can be separated and state which property of matter each separation method is dependent on (see class notes for list of different ways).

    • Explain how chromatography is conducted and measured using appropriate vocabulary terms (stationary phase, mobile phase, solute, solvent, Rf factor.)

  • Describe one method for separating a pure substance, specifically a compound (electrolysis).

  • Give real world examples of uses of separation techniques including centrifuging, chromatography, distillation, fractional distillation, and electrolysis.

Coming up...

Energy and Matter: Describe how energy affects the states of matter in terms of phase changes - exothermic, endothermic.

Identifiying matter: Define intensive and extensive properties -and explain which is more useful for identifying substances.

Quantitative goals:

• Density calculations - be able to find X when given two of the three: mass, volume, or density.

• Identify the correct number of significant figures in a calculation.

See below for Daily Calendar:

8/29 - Intro to Lab Safety

Crash Course: https://www.youtube.com/watch?v=VRWRmIEHr3A

8/30

Accident at Jefferson High https://www.youtube.com/watch?v=PxyDImUYo14

How to use a Bunsen burner: https://www.youtube.com/watch?v=ZmtbMKJLUJo

Chemistry Safety Review (see word document "safety ws" attachment below)

9/1 - set up lab drawers, safety quiz and disappearing penny

9/2 - penny lab part 1 &2A &2B

9/6. Penny Lab part 2C and 3 & begin classification of matter

9/7 - Penny Lab and Classification of Matter WS.

9/8 - Finish and turn in penny lab & finish Classification of Matter WS

9/9 -- NOTES on CLASSIFICATION OF MATTER (see powerpoint below)

9/12 - Start Chromatography of Skittles Lab

9/13 - unpack lab materials, go over HM from 9/8, return and discuss lab

9/15 Finish Chromatography of Skittles lab (due MONDAY)

How does chromatography work and how do you measure Rf values? https://www.youtube.com/watch?v=J8r8hN05xXk

9/19 What are some practical uses of chromatography and distillation?

Video 1 - CSI - What was chromatography used for in this clip? https://www.youtube.com/watch?v=zEXO6TxaJTI