Surfactant

or lowering the reaction temperature. Emulsion polymerization is a unique process in that it affords a means of increasing the polymer molecular weight without decreasing the polymerization rate. The difficulty of removing all impurities such as surfactant residues from the polymer is the only disadvantage of this…

Destin Briggs Lu Jack Chem 4235 11/4/2017 Original Synthesis of Cadmium Nitrate Tetra-Hydrate Cadmium nitrate tetra-Hydrate is an inorganic compound from the family of compounds with the general formula Cd (NO3)2.XH20, where X=4, hence the molecule has four molecules of water of crystallization in its structure. It exists as a salt but in its anhydrous state, it is known to be a volatile substance. It is a colorless substance as are all the compounds in the family of cadmium nitrates. Cadmium…

The Chemistry of Baking If there is one thing in the world that brings people together, it is food. No matter who a person may be, or what their background is, everyone can enjoy an excellently crafted dish. In particular, many people enjoy selections of pastries, sweets, and bread. There are hundreds to thousands of crafted desserts and bread around the world. When a person first bites into a macaroon, slice of asiago bread, or a perfectly-shaped chocolate chip cookie, they might not consider…

The subjects within this report take a look at the environmental risks and impacts oil extraction, transportation, and use has on the environments within the regions of Texas, Oklahoma, New Mexico, and the Gulf of Mexico. Crude oil can be described as an naturally occurring unrefined petroleum product made up of long hydrocarbons that can be refined into a usable product. Examples could range from gasoline, diesel or some sort of petrochemical. 2. Extraction: When looking at all four areas…

The second night of my baby boy’s life I was informed that they would have to intubate him because he was not getting enough oxygen. They said that as they did that they would put surfactant into his lungs to help his lungs open and close and not stick shut. The doctor informed me that the next 24 hours were going to be the most critical. After that I saw my baby boy every three hours. At that point I started pumping and from that point…

1. Describe 3 targets of antibiotics, why each target is unique to the particular bacteria, and under what circumstance the bacteria could be resistant to that particular drug. (5 pts) As the name implies 50s subunit protein synthesis inhibitors such as erythromycin inhibit protein synthesis by binding to the 50S subunit of the 23S rRNA molecule of the bacterial ribosome. This ultimately acts to block the exit of the growing peptide chain. It should be noted that gram+ bacteria more…

Review Questions # 5 2. Distinguish between autosomal dominant and autosomal recessive disorders and provide a couple examples of each. When dealing with genetic disorders its important to understand how they are inherited. There are two ways a child can inherited a genetic disorder from their parents. Autosomal dominant disorder is where one parent has a genetic disorder in which it has already manifested such as familial hypercholesterolaemia, marfan’s syndrome, and…

Obesity has been affecting society for centuries. The rate of gaining weight and health related diseases have increased during the past decades. Farmers are using harmful chemicals, such as pesticides, to protect their crops from insects. Scientists and food companies are coating edible items with deadly chemicals to enhance their products’ flavor. Over twenty different kinds of chemicals are sprayed into the environment and in our food, increase the rate of obesity found in adolescents.…

In this study, we use the modified organo nanoclay as a new sorbent for separation and preconcentration trace amounts of Au(III) in aqueous solutions. Nanoclay was modified with 5-(4'-dimethylamino benzyliden)-rhodanine. Modified nanoclay was used as a solid sorbent for separation and preconcentration trace amounts of Au(III) ions. The sorption of gold ions was quantitative in pH range of 2.0 to 6.0, whereas quantitative desorption occurs instantaneously with 6.0 mL of 1.0 mol L-1 Na2S2O3. The…

The creation of mass production, by way of Henry Ford’s introduction of the assembly line, catapulted the world into a realm of mass standardization, establishing a platform for lower production costs and a virtually homogeneous society. Nearly identical homes, vehicles and footwear ultimately sparks the need for practices that aid in perpetuating one’s own individuality. Physicality, for example, is one of the few palpable means of conveying personal identity. With mass production, fashion…