Trisilacyclohexane Lab Report

The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in

The purpose of this experiment was to practice the functional group transformation procedure. The process of the experiment included the dehydration of 2-methylcyclohexanol in the presence of phosphoric acid and heat. The products that were formed from the reaction were 1-methylcyclohexene and 3-methylcyclohexene. The mass of the final product solution was 0.502g with a percent yield of 18.7% and a boiling point range of 84.5-98.5oC.

Discussion As part of the experiment, the percent composition of each component of the mixture was calculated. 51% of the components were retrieved from filtration while 49% of the solvents were retrieved from dissolving the components in a solvent. The original mixture was one globular solid-like structure.

In order to test the rate of phagocytosis in tetrahymena, the tetrahymena need to ingest particles that are visible under a light microscope. The substance used in this experiment was India ink. India ink is deep black colored ink containing dispersed carbon particles. The trethymena treat the India ink as if it were food and ingest it. There were three concentrations of India ink that were fed to the eukaryotes The percent’s that were used are: 1%, 5% and 10% of India ink. After certain time intervals, the tetrahymena were fixed with a compound called 3% paraformaldehyde (PFA).On the first day six different mixtures of tetrahymena and ink concentrations were made to test which conditions would express the best rate of phagocytosis. The well fed tetrahymena were fed with 1% India ink, the another group was fed 5% India ink, the last group was fed 10% India ink. Then the starved tetrahymena were fed in the same manner as the well-fed tetrahymena. After adding the ink to the microcentrifuge, we prepared a slide for each mixture at the following time intervals 2 minutes, 5 minutes, 10 minutes, 20

It was also soluble in cyclohexane, which was another non polar bond. Unknown 3 was classified as an ionic compound because it had a high melting point and was conductive when it dissolved in water. It was also brittle which is a characteristic of an ionic compound. Unknown 4 was classified as a polar covalent bond because it had a

Substance one was determined to be iron because it was magnetic, and the its melting point was 1535℃, its boiling point was 3000℃, and its density was 1870 g/L. Substance 2 was determined to be wood, because it was lightweight and grainy and a wooden color. It also floated, meaning it had a density less than water, like wood. Substance 3 was determined to be sand, because it was small rocks, which is sand, and had a melting point of 1610℃, a boiling point of 2230℃, and a density of 2650 g/L. Substance 4 was determined to be salt, because it was made of small, white grains, and conducted electricity. It had a melting point of 801℃, a boiling point of 1413℃, and a density of 2170 g/L. In this lab, physical interactions were used to determine

Triton is the largest satellite that orbits the planet Neptune. The surface of Triton is riddled with cryovolcanoes that emit volatiles such as water, ammonia, or methane, instead of the molten rock that volcanoes on Earth emit. It has an atmospheric pressure of 14 μbar (1/70,000th of Earth’s surface pressure) and a gravitational constant of -0.779 m/s2. The average surface wind speeds are 5-15m/s, and the average temperature is 35 K.

First: Soaking wet gel excessive amount of ethanol at room temperature with a change of ethanol per day for three days and then replaced by ethanol by Regular hexane, which has the surface tension less where soak gel excessive amount of regular hexane at room temperature and the new regimes hexane day for three days in order to make sure fully replace solvent, then drying the gel in different ways as

This laboratory experiment was conducted to examine the effects of a non-ionic surfactant known as Triton X-100 on the viability of a ciliated unicellular eukaryote, Tetrahymena thermophila. Due to T. thermophila being a ciliated unicellular microorganism, with a very short doubling time through binary fission it excels at being an alternative model organism utilized in the field of toxicology (Orias et al., 2011). These advantages along with its direct applicability to the toxicant without any further preparation allow T. thermophila to be an ideal choice for this time constrained experiment when compared to other possible test organisms available.

At Tingalpa creek a number of chemical tests were performed in order to collect data about the health of the waterway. Water temprature,oxygen concentration, PH level, Nitrates/nitrites, phosphorus, salinity and E.coli were tested.

Abstract By using the green salt synthesis, we obtained Introduction When it comes to using inorganic compounds, such as salts, they contain a complex ion. A complex ion has a central metal ion, to which is then bonded with a neutral molecule that forms ligands. In this experiment, potassium trisoxalatoferrate(III) and potassium ferrioxalate will take part in purifying the product using recrystallization. A pH titration will be used to analyze the mass percent of potassium and iron, meanwhile, the oxidation-reduction titration will be used in order to figure out the mass percent oxalate in the finalized purified product. Once the results of the two percentages are calculated, one must compare them to the theoretical values to indicate

In this experiment, the pKa, dissociation constant, of 2-naphthol was determined by measuring the UV-visible absorption spectra of solution of the acid at different pH values.

All chemicals and reagents were obtained from Sigma (Sigma-Aldrich). A glycerolated Tris-lactose egg yolk extender was freshly prepared for dilution of semen as described by El-Bahrawy et al. (2006). Briefly, the extender was composed of 0.25 Molar Tris buffer (3.25 %, w/v), lactose (5.5 %, w/v), citric acid (1.67 %, w/v), glucose (1 %, w/v), and was further supplemented with egg-yolk (20 %, v/v) and glycerol (3 %, v/v) to reach a final pH of 7.4 and 0.351 osmol/kg osmotic pressure. The glycerolated diluent was added to the semen specimens in a one-step dilution technique.

Squalane is a hydrocarbon closely related to the compound squalene, which has a role in hopanoid synthesis in bacteria. Hopanoids have an important role in regulating membrane fluidity at different temperatures. Squalane was added to samples of Rhodobacter Sphaeroides in low, ideal, and high temperature conditions in order to determine if this compound indirectly affects hopanoid synthesis, and therefore, the capacity for growth in non-ideal temperatures as compared to samples without squalane. To determine if growth-enhancement effects observed with squalane are due to the compound being used as a substrate, bacteria were grown with and without it while suspended in either nutrient broth or minimal media. The mechanism of degradation of squalane

In cyclohexane, there are two identical chair conformers and cyclohexane has the hydrogen atoms located as the axial and equatorial like what had mentioned at the previous topic. The chair conformers are presents in equal concentration due to the rapid interconversion of the axial groups and equatorial groups.