Similarities Between Water And Hexane Solubility Test

After all materials were gathered, we then had to do five different tests to determine what the powder material does. The first test was to see what the powder materials do in water. We had to add a scoop of each of the common powders to an

Procedure: Preparation of solution of unknown hydrate: 1. A clean dried test was taken. 2. A sample of unknown hydrate was taken in test tube.

Created on Chem Doodle. Overall, Experiment 6 used many different techniques in order help identify a compound by comparing them to known substances. Some techniques used in this experiment include: electrophile addition, TLC, melting point determination, double elimination, UV-vis spectroscopy, recrystallization, and series of dilutions. For example, in Part 1, the final product of the experiment had the

The purpose of the lab is to perform series of tests to determine the physical and chemical characteristics of several unknown powders, and then use that information to classify the unknown powders.

A series of both chemical and physical tests were performed so on (5g) of the unknown compound. Mixing the unknown compound with other waste could create an unwanted reaction, and due to this our group needed to identify its chemical and physical properties. This unknown was given to us by the TA and it was in our group’s capabilities to perform multiple tests to identify what the unknown was. Our group performed a multitude of tests to

2. List each test you performed to determine the identity of this unknown substance from your sludge and give actual data collected (boiling point, density values, relative density, etc) that you used as evidence.

Color/appearance- Test 1: Materials: Unknown substance. Procedure: We all looked at the substance until we agreed on one color and shape. Data: We found that our substance was round shaped and angled orange powder.

Students took a forensics unit in their chemistry class and did all types of experiments that forensic scientists would do on a daily basis. They looked at the chemical and physical properties of blood. “Chemical students participating in this unit used a variety of forensic techniques including teeth impressions, fingerprinting, lip printing , chromatography paper, blood splatter projections, and chemical analysis” (Guzzetti 195). Chromatography paper, often used in chemistry experiments, is used to separate liquid mixtures, specifically homogenous mixtures. Homogeneous mixtures are mixtures that one could not see all parts of. Blood is a great example of a homogeneous mixture another one could be marker ink in water. The chromatography paper would separate the mixture by the ink going up the paper. In blood it will separate the different parts of the blood so one could look at the different parts of it. The students looked at more of the chemical properties of the blood as well. “The students were charged with observing the scene and collecting as much data as they could from blood splatters to fibers” (Guzzetti 196). The fibers of the blood show the chemical properties of the mixture. Forensic scientists have to look at the chemical properties of blood all the time. Without the chemistry behind looking at the different parts of the blood it would be much more difficult to analyze it. Chemistry and

Purpose: The purpose of this experiment is to learn about and use the Scientific Method. The discussion of physical properties such as density, color, texture, smell, and solubility will take place.

We needed to develop different methods to separate each part of the mixture to identify the materials in the mixture and what objects we would use to separate the mixture. In our experiment, we had salt and sand how could you identify these mixtures you would use water and the sand will sink to the bottom.We needed to develop different methods to separate each part of our mixture because they were all together so you wouldn't be able to separate them by hand.

5. Record observation of whether it dissolved or did not dissolve, in the results table below; and repeat for the other 5 substances.

The purpose of this experiment is to identify an unknown substance by measuring the density and boiling point. I will be able to conclude which substance is my own from a list of known options stating what its real boiling point and density is.

The purpose of this lab is to learn how to identify a solution as unsaturated, saturated or supersaturated. In this lab, we adjusted the amount of solute, the substance that does the dissolving, in the solvent, the substance that the solute dissolves in, to see the saturation levels.The amount of solute that a given amount of solvent will hold is called solubility. First, we added a crystal of sodium thiosulfate into 1 ml of water and observed that the crystal dissolved. This process indicates that the liquid was unsaturated which allowed or the solute to dissolve. Next, we added 2 grams of hypo powder. We observed that some of the powder dissolved but some didn’t and the test tub became cold. The coldness indicates

 A physical property is a characteristic that we can observe without changing the composition of a substance.  Examples

For generating valuable data with a desired accuracy and to quantify concentration of the constituents present in the samples being analyzed.