Chemistry

Chromatography: Separating mixs Introduction: Magic bulls look inks are often mixed bags of some(prenominal) compounds. composition chromatography is a common method acting of separating various components of a mixture. after(prenominal) separation, you wad observe the contrastive rubrics that absorb up a particular color of magic scar ink. You can also calculate a ratio Rf, which compares how outlying(prenominal)thest from each one compound travelled to how far each answer (substance that dissolves other substance) traveled during the experiment. Rf = Ds/Df Ds = set out traveled by the compound Df = Distance traveled by the solvent Materials: inebriety coffee bean filter, tape, rubbing alcohol, piddle, 3 dissimilar color magic scars (not permanent); 3 identical tall, narrow drinking glasses; metric ruler, 3 pencils Pre-lab Questions: 1. List one long and one intensive direct of marker ink. Intensive-color Extensive-volume 2. Define mixture. Mixture contains two or more(prenominal) different substances which are only physically bonded.  3. Is tap piddle a heterogeneous or same mixture? pardon your answer. Heterogeneous, It contains ions, fade external gases, bacteria, etc.

But unless you are sightedness brown chunkies or deposit floating around in it the water is put away a homogeneous mixture since its components are again commingle at a microscopic level. 4. Is rubbing alcohol a heterogeneous or homogenised mixture? Explain your answer. It is homogenous because you cant see the different part in it Procedure: 1. reduce 3 denudates of coffee filter. Be sure that the strips are piles 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 close 0.2 cm in diam and dark enough to be clearly visible. 3. Place most 2 cm of water in each glass. 4. tape 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 learn to get a wax essay, order it on our website: Orderessay

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