Essay about 5.05 Mixtures and Solutions Lab Report

8. The Tubes were observed for a final 5 minutes, noting any color changes in the solutions.

1. Record your hypothesis about what will happen when Biuret solution is mixed with the solutions from test tubes 1, 2, 3, and 4 here. Be sure to use scientific reasoning to support your hypothesis.

24) Separate the formed crystals (benzoin) and allow them to dry, then take the MP.

1. Which dye diffused the fastest in corn syrup? Red Dye In your chosen material? Lemon Concentrate, Blue Dye

c) Record the amount of substance that dissolved – all, some, a little, or none.

The first step that needed to be done in this experiment was adding hydrochloric acid (HCl)

1. View the three scenarios listed below. You must observe and analyze these as part of the lab.

The similarities between column and paper chromatography is that both have a stationary and mobile phase. The stationary phase in the paper chromatography is the paper, and in the column is the sodium bicarbonate. The mobile phase in the paper chromatography is the movement of the solvent, .3% NaCl, and the column is the different solutions added. Column chromatography is basically the same as paper chromatography, except that the dye solution would have to be added individually rather than being able to do it all at once, like it does when using chromatography

The Vitamin C turned to a red/orange color with no physical/chemical reaction. For the salt the solution turned to an orange color with no physical/chemical reaction. With the Alka-Seltzer, the solution turned to a brown color with no reaction as well. Last but not least, the Baking soda turned to an orange/brown color with no reaction.

3. Did any bubbles form off the screw in the sugar solution at all? Why might this happen despite your answer to Question 2?

So my guess was correct again. The blue water did slowly enter the red water.

The next step was to place the strip of chromatography paper on a paper towel. Then dip a capillary tube into the plant pigment extract (spinach pigment extract) provided by the teacher. The tube will fill on its own. We applied the extract to the pencil line on the paper, blew the strip dry, and repeated it three to four times until the line on the paper is a dark

a. White foods such as bread or rice generally under the same type of process as sugar to get its color.

There are four different kinds of chromatography, there is gas, paper, liquid, and thin-layer. Gas chromatography is mostly used to determine the chemical composition of the unknown substances. Thin-layer is used on thin plastic or glass trays to identify the composition of pigments and chemicals. Liquid is used to identify an unknown plant pigments and other compounds. Lastly, paper can be used to separate the components of inks and dyes. So in this essay i will talk about two real life cases that involve Gas and paper chromatography and

     Conventional Liquid Chromatography is most commonly used in preparative scale work to purify and isolate some components of a mixture. It’s also used in ultra trace separations where small disposable columns are used once and then discarded. Analytical separations of solutions for detection or quantification typically use more sophisticated high-pressure liquid chromatography instruments.