1. 0.7 g/mL0.9 g/mL1.1 g/mL Design a method to separate the mixture of plastic particles 1.Same size particles 2.Insoluble in water (1.0 g/mL) 3.Insoluble in alcohol (0.8 g/mL) Isolate the different density particles PGCC CHM 101 Sinex

2. From this mixture- To isolated particles- PGCC CHM 101 Sinex

3. 0.7 g/mL 0.9 g/mL1.1 g/mL add water PGCC CHM 101 Sinex

4. water 1.0 g/mL 0.7 g/mL 0.9 g/mL1.1 g/mL skim off floaters filter sinkers PGCC CHM 101 Sinex

5. 0.7 g/mL 0.9 g/mL1.1 g/mL add alcohol PGCC CHM 101 Sinex

6. 0.7 g/mL 0.9 g/mL1.1 g/mL alcohol 0.8 g/mL skim off floaters filter sinkers PGCC CHM 101 Sinex

7. Suppose instead of adding water first as we just did, we added the alcohol to the mixture first. Would this work? PGCC CHM 101 Sinex

8. 0.7 g/mL 0.9 g/mL1.1 g/mL add alcohol Alternative procedure- PGCC CHM 101 Sinex

9. 0.7 g/mL 0.9 g/mL1.1 g/mL alcohol 0.8 g/mL skim off floaters filter sinkers PGCC CHM 101 Sinex

10. 0.7 g/mL 0.9 g/mL1.1 g/mL add water PGCC CHM 101 Sinex

11. water 1.0 g/mL 0.7 g/mL 0.9 g/mL1.1 g/mL skim off floaters filter sinkers PGCC CHM 101 Sinex

12. If these particles were water soluble, would it change your method of separation? If so, explain how. Does this open up the separation to other possible methods? Explain. Follow-up questions to ponder- PGCC CHM 101 Sinex

13. Does your method have to change if this was the mixture? PGCC CHM 101 Sinex a written version of the procedure