.

Saturday, April 6, 2019

Chromatography Questions Essay Example for Free

Chromatography Questions EssayProcedure1. Define chromatography 2. Gather materials for the lab. 3. Mark the filter paper with a draw line 2.0 cm from the end of the paper. 4. Write the color of the felt marker in pencil at the top of the filter paper. 5. With a felt pen, make a dot on the philia of the pencil line. Let the spot dry. 6. Repeat the process adding more ink to the spot. Try to make it thicker, non wider. 7. Set that filter paper aside. 8. Repeat 2-5 using a new filter paper and other color. 9. Secure the two pieces of filter paper using the paper clip and hang them so they flip the 25-50 ml mark in the DRY 400 ml beaker. 10. Remove the papers from the DRY beaker and set out aside.11. Using the 10 ml graduated cylinder, measure and pour 2.0 ml of vinegar into the 400 ml beaker. 12. Fill the 400 ml beaker with enough water to make a water-vinegar rootage to the 25-50 ml mark. 13. guardedly place the two pieces of filter paper in the beaker so the dots are not touching the water-vinegar solution. If they wane into the solution, you will have to start over. 14. Observe the ink spot as the water-vinegar solution moves up the paper. 15. When the solution reaches the paper clip, remove it and mark the end of the solution with a pencil. 16. Let the filter papers dry on a paper towel. 17. Record your observations. 18. Measure and sketch the colors that you observe.Analysis Answer these on another sheet of paper in ink or type. (Rewrite questions.)1. Define chromatography. 2. With the black marker, how many varied colors can you identify? Describe this. 3. Why do you see different colors at various locations on the filter paper? 4. Compare and contrast the colors in the black and/or br have got markers on the filter paper with one other marker that is not black/brown. 5. How is the proficiency of chromatography used to separate a mixture? 6. Is chromatography a physical or chemical change? beg offConclusion1. Describe what you have learned f rom this lab.2. Research different types of chromatography to understand how it is used. Rewrite this in your own words.

No comments:

Post a Comment