Syn and Ana Nickel complex lab report hutchinsae1 (1)

student found a bottle of unknown origin in the basement of an "CAUTION—contains С₁H₁O.” No other A old house. The bottle was labelled information was given, but inside the bottle were some white crystals. The student took the bottle to a chemistry laboratory, where she analyzed the crystals with the help of the laboratory staff. C₁2H₁6O reacted with Br₂ in CCl4 adding one mole of Br, and forming C₁₂H₁OB2₂. When a sample of C₁₂H₂O was reacted with O3 followed by Zn/H₂O, two different samples, J and K, were obtained. Compound J had a molecular formula of C.HgO₂, and its NMR is shown below. Compound K had a molecular formula of C₂H₂O, and it could be oxidized to compound L, with a molecular formula of C₂H₂O₂. The IR spectrum of L showed a very wide, strong band centred around 3000 cm*¹. The NMR spectrum of L showed only two different absorptions: a doublet (6H) at 0.9 ppm and a septet (1H) at 3.6 ppm. There was also a singlet (1H) off the scale at 11.8 ppm. students, deduce possible…

On rare occasions, faculty members have to produce reactants for their students to use. Students are similar to the judges on the show; they don't care about the sabotages or what the faculty member had to endure. However they expect reactants for their experiments to be available when they hit the lab. If I (the faculty member) come out of the stockroom with the following basket of reactants: (There may be a few I do not use or need... sort-of like having broccoli in the basket for making bacon and eggs sunny side up..): • HCI • HBr • hydrogen peroxide • 2-methyl-1-butene (fresh bottle, still with its seal unbroken, distilled and stored under nitrogen • 2-methyl-2-butene (fresh bottle, still with its seal unbroken,distilled and stored under nitrogen. • a cylinder of chlorine gas • a cylinder of bromine gas Tell me how you will prepare the following: A) You need to prepare 2-chloro-2-methylbutane as the only product of a chemical reaction. B) You need to prepare 1-bromo-2-methylbutane…

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26) The floor tiles in SE 27 are about 1 square foot and the lab is about 25 tiles wide and about 36 tiles from front to back. When the emergency shower was demonstrated, in 10. seconds the water in the trash can was about 1 foot deep. One student estimated this was 2.5 gallons. Estimate how deep the room will get in inches after a 15 minute shower. List 3 simplifving assumptions you make in this calculation rea L-36 Tile fiDw ill it cost2 The density of gold is 27l An artist plans to apply gold leaf to a painting with an area of 2.32 f? and a thickness of 1.50

8 - 14 please

According to Wikipedia, Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon. The method was developed in the late 1940s at the University of Chicago by Willard Libby, who received the Nobel Prize in Chemistry for his work in 1960. It is based on the fact that carbon- 14 is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting carbon-14 combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis; animals then acquire carbon-14 by eating the plants. When the animal or plant dies, it stops exchanging carbon with its environment, and thereafter the amount of carbon-14 it contains begins to decrease as the carbon-14 undergoes radioactive decay. Measuring the amount of carbon-14 in a sample from a…

(a) The population of a large city grows very quickly for several years. Then the growth begins to slow, and the population remains constant for several years. After this, the population grows again, but slower than before. Population Population Population Population Time Time Time Time

Green Chemistry and Atom Economy The purposeful design of chemical products and processes that minimize the use of environmentally hazardous substances and the generation of waste is known as green chemistry. Green chemistry is a philosophical approach that is being applied to many areas of science and technology, and its practice is summarized by guidelines known as the “Twelve Principles of Green Chemistry” (see details at this website (http://openstaxcollege.org/l/16greenchem) ). One of the 12 principles is aimed specifically at maximizing the efficiency of processes for synthesizing chemical products. The atom economy of a process is a measureof this efficiency, defined as the percentage by mass of the final product of a synthesis relative to the masses of all the reactants used: atom economy = mass of product/mass of reactants × 100%Though the definition of atom economy at first glance appears very similar to that for percent yield, be aware that this property represents a…

What safety rules did Andrew break?

The Covid-19 pandemic has many experts commenting on the science associated with the virus - origins, vaccines, monoclonal antibodies, masks, social distancing.  It is important to consider what the experts say, but to also evaluate their statements.  We will start with the scientific method.  I want you to outline the scientific method from what you have been taught in previous classes.  You can list steps, parts, process, short descriptions, whatever.  If not taught in previous classes, then you will make your best guess about it.

New employees at Avondale Industries’ unmanned systems production line in Denver, CO, participate in employee training under the direction of the training and development department, but the line managers conduct the actual training. During the last two trainings, the line managers cut the sessions short and explained that the employees would receive better training while working on the production line. The trainer responsible for the program understood the line managers’ viewpoint about developing skills used on the line but needed them to see that training should provide more than just developing those specific skills. Which of the follow statements best explains why training should provide a longer-term view than just teaching line workers the skills needed to perform satisfactorily in their current jobs?     Giving line workers expanded training helps them understand more than specific skills; it also helps them become more confident contributors.   Training with a…

Historically, toxicology testing has been focused on one chemical at a time, yet we are rarely expose to chemicals in isolation. Why do you think this approach to testing has been taken? What challenges may be involved in studying mixtures of chemicals?

Provide a short description of multiplicity and give an example of how it relates to someone life. 150 words minimum

A chem....rking as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of tetrahydrofuran, chloroform, ethanolamine, diethylamine, and pentane. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid density tetrahydrofuran -1 0.89 gmL -1 1.5 g•mL chloroform ethanolamine 1.0 g•mL¯ diethylamine - 1 0.71 g•mL pentane - 1 0.63 g mL Next, the chemist measures the volume of the unknown liquid as 1062. cm° and the mass of the unknown liquid as 1.08 kg. Calculate the density of the liquid. Round your answer to 3 significant digits. 1 g•mL Given the data above, is it possible to identify the liquid? yes no tetrahydrofuran chloroform If it is possible to identify the liquid, do so. ethanolamine diethylamine pentane