Science Homework Help

1. When the GC is not ready to use, the status box is in ___________________ color; then the GC is ready to use, the status box is in ___________________ color; then the GC is waiting for injection, the status box is in ___________________ color; and when the GC is in the process of sample separation, the status box is in ___________________

Part 2. Short answer questions. Be concise.

1. (2 pts) How many gas tanks are associated with the GC unit introduced in the video?
2. (2 pts) What gas was used as the mobile phase in the video?
3. (2 pts) The tag on the column indicates the size information of the column. What is the length of the column used?
4. (2 pts) In order to regraph the chromatogram in excel, what format was the data be exported in?
5. (2 pts) How were the instrument operation parameters set?
6. (10 pts) Explain why a longer capillary column has more severe B-term diffusion than a shorter packed column when they are run at the flow rate
7. (10 pts) Explain why there is an optimal flow rate for chromatographic separations.

Link to the lecture video:

https://youtu.be/6h-PNev8uMc

https://youtu.be/ZonAlLFQoRM