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18 Nov 2019
PREPARATION WORKSHEET Date: TA: Section Answer the following questions using information obtained from lecture, the textbook, the lab manual, or other reliable sources. The responses will be collected at the beginning of Pre-Lab Recitation and checked at the start ofyour lab section for credit. Failure to complete all answers may result in exclusion from participating in the lab. 1. In chromatography a. what do the mobile and stationary phases do? b. what is the mobile phase in this experiment? c. what is the stationary phase in this experiment? 2. Why will a pencil be used to mark the paper rather than a pen or marker? 3. Why do we have to wait for the spot to dry before adding more dye to the spot?
PREPARATION WORKSHEET Date: TA: Section Answer the following questions using information obtained from lecture, the textbook, the lab manual, or other reliable sources. The responses will be collected at the beginning of Pre-Lab Recitation and checked at the start ofyour lab section for credit. Failure to complete all answers may result in exclusion from participating in the lab. 1. In chromatography a. what do the mobile and stationary phases do? b. what is the mobile phase in this experiment? c. what is the stationary phase in this experiment? 2. Why will a pencil be used to mark the paper rather than a pen or marker? 3. Why do we have to wait for the spot to dry before adding more dye to the spot?
Hubert KochLv2
31 Oct 2019