Chem lab questions for (extracting caffeine from tea bag water using dichloromethane --> filtered --> steamed --> obtain caffeine )
1. does tlc give a conclusive identification of caffeine ( extracted from tea bags) ? why or why not?
2. is the extract a pure compound or mixture of compounds? explain
Answers: 1
Chemistry, 22.06.2019 07:30
Plz mark brainliest 30 points 1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s. 2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?
Answers: 1
Chemistry, 22.06.2019 09:20
Give the orbital configuration of the phosphorus (p) atom.
Answers: 1
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