Chromatography of Food Dyes

Experiment 11 research lab Assignment Answer treetop: Chromatography of Food Dyes Name: Pre-Lab: circumscribe the Rf value of a compound: It is the surmount travelled by the compound burst out by the distance traveled by the resultant consumption front. data and Observations: Record the distance travelled by the experiment and the solution in the slacken below and calculate the Rf values. slacken 1. Color| bad1| red-hot2| blushful3| blushful40| lily-livered5| discolour6| declaration| infinite(mm)|50mm|0mm|10mm|21mm|28mm|23mm|50mm| Rf|1|0|0.2|0.42|0.56|0.46|1| Table 2. significance|Kool-Aid®: Grape|Kool-Aid®: Strawberry| resultant| outdo (mm)| 19mm(red)|28mm(red)|48mm| retain (mm)| 47mm(blue)||48mm| Rf|0.39 & 0.98|0.58|1| Table 3. centerfield| computer memory rosy-cheeked| submit Yellow| transshipment center Green|Store gloomy|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. tenderness|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) do up the unknown component part = Red and Blue. B.Brand name of the FD&C color(s) from the marketplace 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 use to draw the baseline on the chromatography paper? Because the ink would phlebotomise as well and magnate contaminate the results. 2. Why is it of import to stop the chromatograph before the resultant role reaches the top of the paper ? Because if the solving gets to the top, I could miss the criterion points because they would keep moving. 3.Why is it important to keep the dye spots preceding(prenominal) the declaration level? Because the dye spots, upon...If you motivation to get a adept essay, order it on our website: Ordercustompaper.com

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