Justin Case: What Not To Do Laboratory

There were only buckets of water that was to be used in case of a fire. Although there were fire hoses in the stairwell of the building, they did not work, one survivor of the fire was able to talk about their reaction when they found out the fire hose did not work, “[n]o pressure. No water. I tried it. I turned the nozzle one way and then another.

The objective of the experiment “Keeping it Liquid” was to figure out what it takes to keep a compound in a liquid form which caused a phase change. A phase change is when a substance changes from one state or phase to another. There are three main phases that normally occur and they are called Evaporation, Deposition, and Melting. Evaporation is where a liquid changes to a gas. An example of evaporation is when water drops form on the glass of a cold drink on a warm day. Deposition is where a gas vapor goes directly into the solid phase without becoming a liquid first. An example of Deposition often occurs on windows during the winter months. While Melting is where a solid turns into a liquid. Melting occurs when ice turn into a liquid when

When facing the class for the first time, Howe was very irritated. As all the students rushed to their classes Howe himself was procrastinating. He stopped by his office and lit himself a cigarette. Not only did this kill some

gives us the example of the students seated in a room and then smoke was

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

11. Write the balanced chemical reaction of zinc with HCl (same as problem 5). Is the product of this reaction soluble in aqueous solution?

Just moments after being given instructions to climb to a higher altitude “the captain stated, ‘Look at that crazy fuel flow indicator their on number four, see that?’” (TWA flight crash). Afterwards, in an investigation lead by the Nation Transportation Safety Board (NTSB) they concluded that the cause of the crash was due to the combustion of the mixture of air and fuel in the “center wing fuel tank” (TWA flight crash). It is no wonder why many people believe the cause of the crash was a fuel tank explosion. Later, the NTSB claimed that two worn down wires must have sparked in the fuel tank, exploding the whole plane (Cole 36). The NTSB also that the flammability in the central wing fuel tank, due to the hazardous mixture of air and fuel, was too high (TWA Flight 800). Based on the various tests and investigations of the crash, mechanical failure has remained one of the most accepted theories of the flight’s

A buffer is a solution that resists changes in pH when H+, OH-, or H20 is added. By using standard lab equipment, a lab pro diagnostic tool, and acidic and basic solutions, the pH can be found. By recording the pH while adding a base or an acid gradually to a buffer solution you can find the capacity of each buffer to resist drastic changes in pH. The best buffers will keep a solution from becoming either too acidic or basic with the addition of a strong base or acid.

Newbridge, a recently hired project head manager, meets Zaph at the lab one day. Zaph was an intelligent capable person, who had impressed Dr. Jerrold, the head of the laboratory. Zaph had many ideas and solutions to the different problems the lab was dealing with. Zaph immediately connected with Links, the mathematician, and started helping him with his theories, which Newbridge did not understand very well. Zaph’s dominant personality became apparent to Newbridge, who admired Zaph’s for his abilities but at the same time felt threatened. Newbridge started taking a back seat to Zaph’s ideas and presentations and Newbridge grew apprehensive about his job position at the laboratory. Without discussing his

Later on in the story Brian and Jeanette are out on an adventure by themselves when they come across a small shed-like building. They go inside and discover chemicals which they of course immediately start to play with, one mixture they created made a violent reaction and flames erupted out of the beaker. (Insert Quote) In the late of the story it was a very cold morning in the house and Lori could not get a fire to start, being desperate for warmth she resorted to use kerosene to start the fire. Rex had told her to do this before but was not present when she used it. Lori put too much on the fire and when she lit it the fire stimulant exploded in her face and singed her eyebrows. If the children had the protection of their parents from fire their lives would have been safer and more secure.

This report from the investigation by the Department of Justice Office of the Inspector General (OIG) concerned allegations of wrongdoing and improper practices within certain sections of the Federal Bureau of Investigation (FBI) Laboratory. Those allegations involved some of the most significant prosecutions in the recent history of the Department of Justice, including the World Trade Center bombing, the Oklahoma City bombing, and the mail bomb assassination of U.S. Circuit Judge Robert Vance (which was referred to within the FBI as the VANPAC case). The allegations implicated fundamental aspects of law enforcement: the reliability of the procedures employed by the FBI Laboratory to analyze evidence, the integrity of the persons engaging in

1. When you are notified that a user’s workstation or system is acting strangely and log files indicate system compromise, what is the first thing you should do to the workstation or system and why?

3.List whether each of the following substances was positive or negative for starch, as indicated by using iodine. (7 points)

There were two men who worked together that owned the Triangle Shirtwaist Factory: Max Blanck and Isaac Harris. After the fire, that killed so many worker, it was brought to the public's attention that there were many safety hazards in that now famous building, and that there were many more buildings just like the Asch building. Some of these hazards were narrow hallways and stairwells. The doors opened into the room, which caused problems during the fire as girls pushed so close together and were pressing so hard against these doors, that it took minutes (that they didn’t have to lose) to open them. The fire hose wasn’t even connected to a water source!

Prior to the disaster, the company had been facing a financial crisis for many years because the sale of pesticides had been fallen (Joseph, Kaszniak and Long 2005, p. 544). Due to the budget cuts, many plant operators received insufficient training on operations and safety awareness (Mannan 2012, p. 2649). As shown in Figure 1, there was a decrease in the length of training programmes for plant operators from 18 months in 1975 to only one month in December 1984 (Chouhan 2005, p. 207). Therefore, with a lack of the knowledge of runaway reactions occurring in the storage tank when the accident happened, many workers could not immediately take any emergency action to lessen the risk of the MIC escape from the storage tank (Chouhan 2005, p. 207). To connect the tank with another