Chemistry

Chromatography: Separating Mixtures Introduction: Magic bulls eye inks are often salmagundis of some(prenominal) compounds. account chromatography is a common method of separating various compvirtuosonts of a miscellanea. by and by separation, you jackpot observe the different modifys that absorb up a particular color of magic scar ink. You can also calculate a ratio Rf, which compares how farthest to apiece one compound traveled to how far each answer (substance that dissolves some other substance) traveled during the experiment. Rf = Ds/Df Ds = value traveled by the compound Df = Distance traveled by the resolution Materials: drinking chocolate filter, intercepte, rubbing alcohol, piddle, 3 different color magic markers (not permanent); 3 identical tall, narrow drinking eyeglasses; metric ruler, 3 pencils Pre-lab Questions: 1. List one extensive and one intensive post of marker ink. Intensive-color Extensive-vol ume 2. Define mixture. Mixture contains deuce or more(prenominal) different substances which are only physically bonded.  3. Is tap body of water a heterogeneous or undiversified mixture? pardon your answer. Heterogeneous, It contains ions, dissolved gases, bacteria, etc.

But unless you are see brown chunkies or sediment floating around in it the water is put away a homogeneous mixture since its components are again immix at a microscopic level. 4. Is rubbing alcohol a heterogeneous or undiversified mixture? Explain your answer. It is homogenous because you cant see the different separate in it Procedure: 1. condense 3 spoil s of coffee filter. Be sure that the strips ! are lots narrower and slightly taller than the drinking glasses. 2. In the center the strips, nearly 3 cm from one end, place a dot of the marker to be tested. The dots should be rough 0.2 cm in diam and dark enough to be clearly visible. 3. Place about 2 cm of water in each glass. 4. taping the unmarked end of each strip to the center of a pencil so that the strip hangs down when the pencil is held...If you involve to get a in effect(p) essay, order it on our website: OrderEssay.net

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