Chromatography Lab, Day 2

Today we took measurements and calculated Rf for our pigments. Lab books were turned back in at the end of class.

Reminder! There is a WebAssign up that’s due next Tuesday! You can do questions 4, 5,  and 8 now based on what we have covered in class so far. The remainder of the assignment will be based on what we discuss over the next few days.

Unit 2 test on Wednesday 10/7!

Chromatography Lab

Did a paper chromatography lab with common food colorings – although some teams got fun neon colors! Today we performed the experiment and left the strips to dry overnight; tomorrow we will take measurements and complete the lab analysis. The lab will be due at the end of the period tomorrow.