Name ____________________
Class _______
Date ________
Separation of Mixtures Lab
Task: Your task is to separate the components of mixtures using the separation techniques
discussed. (Use web quest notes).
Objective: Develop lab skills
Develop the ability to complete a lab report.
Mixture A mixture of red, blue, and yellow food colors
Mixture B mixture of small iron pieces and sand
Mixture C mixture of white sand and salt
Mixture D mixture of blue copper sulfate crystals and water
For mixture A, B, C, your group must:
1. Perform the separation
2. Show the results of your separation to your teacher.
For mixture D, your group must:
1. Perform the separation
2. Show the results of your separation to your teacher.
3. Complete a TYPED formal laboratory report.
(see example of lab provided)
Grading.
5 marks for each separation (lab skills) (A, B, C, D)
……….20
Lab report on the separation of Sample D (product)
………..40
Total …………………………………………………60
Your write up should follow this format- Attach your chromatography to your report.
Name _________________________
Class __________
Date _______
Separation of Mixtures Lab. Sample: D
A. Question: How can mixtures be separated using the physical properties of substances?
B. Research: See handout.
C. Hypothesis:
Examine your mixture, determine if it is a solid, or liquid mixture.
Decide on a method for separating this mixture.
Make a hypothesis based on this method of separation .
Example:
If I take a magnet and run it through the mixture, then the iron filings will stick to the magnet because the
sand is not attracted to a magnet but the iron is.
D. Procedure and Materials.
1. Procedure: List the steps you can use to separate your mixture.
2. Materials: List the materials you will need for each separation.
Get approval from your teacher before you try the separation.
E. Observations and Data: Fill in a Before and After chart like this.
Table 1 Separation of a Mixture
Appearance of a Mixture Before Separation
Appearance After Separation
(Include diagrams and written observations)
F. Analyze Data and State Conclusion.
Re-state your hypothesis.
Tell if your hypothesis agrees with your observations.
Example: My observations show that my hypothesis is correct because the iron filings did stick to the
magnet and the sand did not.
Tell why your method of separation was able to separate the parts in the mixtures that you used.
For example: Was the boiling point of each part of the mixture different?
Was the ability to dissolve in water different for each part of the mixture?
Did the parts of the mixture react differently to magnets? Etc. .
http://www.google.com/search?hl=en&q=separation+of+chemical+mixtures+&btnG=Google+Search