Synthesis Reaction Lab Report

The experiment is to observe a variety of chemical reactions and to identify patterns in

In this experiment, we learned about stoichiometry, empirical formula, molecular formula, polyprotic acids and bases, metathesis reactions, and moles.

The purpose of this lab was to utilize roasting, smelting, spectroscopy, and the carbonate test in order to determine the identity of an unknown copper mineral. I determined that the most useful of these tests in determining the mineral was roasting because it provides a fairly accurate percent composition of copper in the unknown mineral.

When faced with a problem a good scientist will use experiments, notes, debates, and more to their advantage to solve the tough questions. A groups of scientists did just that when faced with a problem of their own. A tiny vial with a white powdery substance in it was put in front of them, and they needed to find out what was in it! Faced with nine possible ingredients in the “Mystery mixture,” a well tray, a water dropper, and a toothpick, these scientists were a little overwhelmed, but determined. One of the first things they did was look at the substance and compare it to their own mixtures, using experiments or chemical properties. Chemical properties are a chemical’s reaction to another or more substances, and a change in it’s identity. When they observed the chemicals the students were using physical properties, or observing the chemical’s smell, texture, color, appearance, size, and shape. They believe Baking Soda and Citric acid are in the Mystery Mixture.

This lab could have contained errors. The errors could have happened when performing the lab. Some of the possible errors in this lab are:

In the first part of the experiment (identifying the chemical makeup of the unknown compound

The Chemical Baggies Lab demonstrated to students how certain chemicals cause diverse chemical or physical changes depending on what substances were mixed together in a designed controlled experiment. During the process of this experiment, almost identical observations were made about different combinations of chemicals that had at least one substance in common. For example, the frequent observation that was made throughout the experiment was that heat was felt. Even though there were distinct chemical combinations, there was one substance that generated a certain observation or characteristic, such as a mixture has to comprise of the phenol red for there to be a color change, which was learned from this lab. Also, calcium chloride

In our everyday life, we witness many chemical reactions. Some fun reactions you may know about are mentos and pop or vinegar and baking soda. Those two reactions are visible to the naked eye. You aren't able to see photosynthesis completely but you know that it take place because a plant grows. Now what about the chemical reactions that you aren't able to see? How do you know when they are complete? Well let me explain this bright and interesting new discovery.

This is done through a change in temperature. Over time, two objects that are in direct contact will

In this laboratory experiment a synthesis was performed through several separate steps. The purpose of the experiment was to synthesize tetraphenylcyclopentadienone from benzaldehyde and to run reactions on carbonyl containing compounds. There was a total of three steps that led up to the synthesis of the final product, tetraphenylcyclopentadienone. The first step of the experiment was the condensation of benzaldehyde to yield benzoin. Thiamine catalyst along with water and ethanol were added to the benzaldehyde, then NaOH was added until the solution turned yellow. After recrystallization, the product was benzoin. Step two was the oxidation of benzoin to benzil.

I looked at what the uses were in everyday life and compared it to how the mixture reacted. For example, citric acid is used in sodas, the mystery mixtures had bubbled resembling soda, so I made an inference that the two correlate and that is why we used citric acid as one of your first experiments.

After putting the CH2Cl2 to a beaker containing the drying agent anhydrous sodium sulfate, a sticky white solid was recovered.

During this particular lab there were various chemical reactions that we had to observe and describe with much detail. In “Part One” of the lab we continued to mix various substances, and then noted descriptive characteristics such as smell and color. This particular portion of the lab was interesting because each mixture lead to a unique reaction. For example, after we mixed the substances “E” and “F” the final substance smelled similar to wood, but this did not occur in any of the other final solutions. Therefore, this part of the lab allowed us to experience a wide range of chemical reactions, which caused an assortment of changes. This aspect of the lab does need to be improved because it was an insightful experiment that forced each student

Dispense .5 mL water into the already weighed conical vial, replace cap and face insert on its down side.

In this experiment, we were given three main goals to accomplish. We were to identify the compound through a series of organized experiments and analyze as many physical chemical properties as possible.