Na tlc analysis, if the solvent was observed to travel 10.0 cm and the spot was observed to travel 4.70 cm, what is the rf for that spot?

TLC stands for thin layer chromatography. Here we use a stationary phase like silica and a mobile phase, the solvent. when an analyte is run over stationary phase, the solvent is chose in such a way that it is will run faster than analyte. Rf stands fir retention factor. Rf is the ratio of distance travelled by analyte to distance traveled by solvent. It can never be greater than one. In the given question: Rf= 4.70cm/ 10 cm= 0.470 Thus it is a unit less term.

a. they are both space stations

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for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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