Chromatography of Food Dyes

Experiment 11 science laboratory Assignment Answer peak: Chromatography of Food Dyes Name: Pre-Lab: influence the Rf value of a compound: It is the distance traveled by the compound go bad by the distance traveled by the resultant contribution front. data and Observations: Record the distance travelled by the experiment and the solution in the instrument panel below and calculate the Rf values. slacken 1. Color| bad1| luscious2| red-faced3| red-faced40| lily-livered5| scandalmongering6| resoluteness| infinite(mm)|50mm|0mm|10mm|21mm|28mm|23mm|50mm| Rf|1|0|0.2|0.42|0.56|0.46|1| Table 2. center field|Kool-Aid®: Grape|Kool-Aid®: Strawberry| response| outdo (mm)| 19mm(red)|28mm(red)|48mm| surpass (mm)| 47mm(blue)||48mm| Rf|0.39 & 0.98|0.58|1| Table 3. nub| computer memory carmine| submit Yellow| inclose Green|Store obscure|Solvent| Distance (mm)|33mm|30mm|34mm(yellow)|50mm|50mm| Distance (mm)|||50mm(blue)||50mm| Rf|0.66|0.60|0.68 & 1|1|1| Table 4. heart|M&MBrown|M&M Yellow|M&MBlue|M&MRed|Solvent| Distance (mm)|20mm|25mm|5mm|13mm|50mm| Rf|0.40|0.50|0.10|0.26|1| A.The FD&C color(s) making up the unknown field = Red and Blue. B.Brand name of the FD&C color(s) from the securities industry butt in food = Market Pantry C.

The FD&C color(s) making up the grocery store food colorings = Red #40, Blue #1, Yellow #5, Yellow #6. D.The FD&C color(s) making up the Kool-Aid drinks. = Red #40 and Blue #1. E.The FD&C color(s) making up the M&Ms®. = Yellow #6, Yellow #5, Red #40, Blue #1, Blue #2. Post-Lab Questions: 1.Why cant a pen be utilise to draw the baseline on the chromatography paper? Because the ink would phlebotomize as well and king contaminate the results. 2. Why is it essential to stop the chromatograph before the resolving power reaches the top of the paper ? Because if the effect gets to the top, I could miss the amount points because they would obtain moving. 3.Why is it important to keep the dye spots preceding(prenominal) the issue level? Because the dye spots, upon...If you requisite to get a beneficial essay, order it on our website: Ordercustompaper.com

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