Electron Synthesis Lab Report Chemistry

Atoms are the basic units of matter and all life is based on them. Life on earth is based on the element carbon. It is a highly versatile atom able to form four covalent bonds with itself or other atoms such as hydrogen and water. Atoms combine to form molecules and those that are carbon based are referred to as organic molecules. Organic molecules occur in four different types in living cells; carbohydrates, lipids, proteins and nucleic acids. They are also known as hydrocarbons due to the presence of both hydrogen and carbon. Carbohydrates are made up of carbon, hydrogen and oxygen in the ratio 1:2:1. They are important sources of energy and are classified in three main groups; monosaccharides, disaccharides and polysaccharides.

Abstract: The purpose of this experiment is to use the apparatus shown in figure 7-1 of experiment 6 found in the lab manual, to synthesize [1,3,5-C6H3(CH3)3]Mo(CO)3.(2016 Oleg) With this, characterization of the molecule can be accomplished using the infrared spectrum and NMR spectrum of the synthesized compound. It was found in the IR spectra of the product, that suitable stretches were found associated with the C-O bonds of mestylene and molybdenum. With One strong spectra was found at 1855.3973 cm-1 , one medium strength spectra was found at 1942.6002 cm-1 , and one weak spectra of C-O stretch was found at 1298.8638cm-1 . The 1H NMR spectrum of the product showed peaks at δ 2.28 and 5.25, while the H NMR spectrum of mesitylene gave peaks at δ

The purpose of doing this lab was to apply the knowledge of chemical reactions to identify an unknown substance. Research was done prior to doing the experiment to provide a basic understanding of the chemical reactions occurring. There are two elementary aspects a chemical solution. First, there’s the reactant. The reactant is the substance added that reacts with another chemical, after the chemical reaction has run its course, what is left is called the product. There are about seven ways to tell if a chemical reaction has taken place; a few of which include color change, precipitate, the formation of gas, and temperature change. In this particular experiment, the question that was being investigated was: What is the unidentified chemical substance? The hypotheses made was: The unnamed chemical is Calcium Chloride considering each are clear liquids.

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.

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

The purpose of this lab was to experimentally and scientifically ascertain the percentage of oxygen in Chem B at Woonsocket High School. It was hypothesized that if the percentage of oxygen is measured experimentally in Chem B at Woonsocket High School, then it would be higher than the percentage of oxygen in dry air, which is 20.95%, because the air is not dry due to moisture in the air from people breathing and the altitude of where the experiment takes place may affect it as well.

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.

: During each reaction, something happened. During reaction 1, after adding the nitric acid a red-brown gas was created. The copper first turned green after a few minutes turned into a blue solution. Reaction 2, When acid was added a blue precipitate formed. Reaction 3, when heated the solution turned into a black precipitate.

The purpose of this experiment is to understand how two different reactions can lose mass in a chemical reaction, and to learn how to arrive to the results in an organized way of recording data. The two balanced equations that we worked with were:

Two chemical reactions occurred in our lab and I have evidence to prove why. To start, the main purposes of the lab were to make two chemical reactions (which are the two main ingredients in the antacid Maalox), to learn about why changes in solubility, state, appearance, pH, and energy indicate that the chemical reaction really happened, and to learn about balanced equations and classifying them. In Part 1, we combined alum and ammonia to make aluminum hydroxide, potassium ammonium sulfate, and ammonium sulfate. In Part 2, we combined epsom salt (magnesium sulfate) and ammonia to make ammonium sulfate and magnesium hydroxide. But the two main ingredients are aluminum hydroxide and magnesium hydroxide.

Results and Discussion Synthesis of Compound 3. Scheme 1: Synthesis of Compound 3. To synthesize compound 3, an approach involving treating triptolide with dimethyl sulfide and benzoyl peroxide in acetonitirile was used (Scheme 1). This approach resulted in the formation of compound 4 with a 51% yield and in triptonide (5) with a 46% yield.

-High temperatures can cause damage to the battery cause it to degrade at a much faster rate than normally.

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

The Lab 9 includes an electron configuration from the Lab 7. However, Lab 9 focuses much more in compounds and their electron charges. Some of the procedure includes: electron dot symbol, ionic compound formulas, names of molecular compounds, and shapes of molecules. No tools were required to perform Lab 9 except the writing utensils.

Main purpose of this lab is to do different tests to identify of an unknown aldehyde or ketone solution.