Molarity Murder Investigation Essay

B) Relevant evidence, will show if the round fired into Abbot matched the weapon discovered in the car. This will link the murder weapon to the murderer C) Physical D) Circumstantial A) Statement from the next door neighbors Jack and Jill, stating they heard a gun go off in Abbot’s house. B)

Forensic analysts also located PETN residues on the clothing McVeigh wore on the day of his arrest (Saferstein,2014). The events surrounding the execution of Timothy McVeigh provide a dramatic case for examining the death penalty. In the course of the debate over capital punishment, the death penalty its morality, its utility and its fairness has been examined from numerous perspectives (Valentine,

A new type of evidence was used in this case. LIBS, an air sampling procedure, was used by Dr. Arpad Vass’ laboratory to determine that there were chemical compounds consistent with decomposition, they also determined that there was chloroform in the trunk(CNN). The defense called on another expert, Dr.

Lastly, the unknown compound was reacted with two different salts. For the first salt, 0.50 grams of KCl was mixed with 5 mL of water in one beaker while 0.5 grams of NaNO3 was mixed with 5 mL of water in a different beaker. Then, the NaNO3 solution was added to the KCl solution. To perform the reaction with the second salt, 0.50 grams of KCl was mixed with 5 mL of water and 1 mL of 1 M Ag(NO3)2 was added. After performing each reaction, the solution was observed to see if a reaction occurred and the pH value of the resulting solution was tested using a pH

In this paper I will be comparing contrasting two various aspects of forensic sciences used, and talking about the different tactics used to identify suspects; as well as the contrasts between the two methods. The man I will be talking about is John Wayne Gacy. The two methods I will be going over are, Finger print DNA and Forensic toxicology. These two are very similar, but made substantial differences in the evidence in his case. John Wayne Gacy was a murderer from Chicago, Illinois.

In the book Blum tracks the days when a pair of forensic scientists began their chemical detective work, fighting to end an era when untraceable poisons offered an easy path to the perfect crime. There are a number of different poisons discussed in the book that gave serial killers a certain advantage over the detectives that investigated their crimes because they were virtually undetectable until the scientists made many advancements in science and technology. Key Idea 1 There are many poisons that were used quite often in the murders of Jazz Age New York. One of the most common ones was chloroform.

Untested Victims Bailey Votto 4/19/16 Margaret Oakes Paper 4 Draft #2 When the two solutions, sodium chloride (NaCl) and silver nitrate (AgNO3) react, a soluble sodium nitrate (NaNO3) and a precipitate silver chloride (AgCl) form. While this reaction is not a common occurrence for most of us in our daily life and work, it is in a forensic science lab. This chemical reaction is just one of the many techniques used to unveil fingerprints in a crime scene. Unfortunately, fingerprints are not always left or able to be found. In that case, new chemical procedures must take place.

Nobody on this earth has a greater understanding of human behavior and forensic evidence than Dr. Eric Silver. He has 6 PhDs in various subjects and has been highly regarded sleuth for almost 10 years. After the 3 incidents like this, they decided to move in the people who have the capabilities to solve this case. Silver moves closer to the body, this body is the only body to commit suicide. However, this one man was not the one to do these acts.

Using the equation m = ΔTf/Kf , the molality of the unknown solution was found. Then, moles of unknown were calculated, which was used to calculate the average molar mass of unknown. Theory: After the experiment was completed, the data

Compelling Evidence In today’s society, high-tech gadgets and the media have given the impression the essential necessity for forensic evidence in order to convict. Once in a while, cases like the Laci Peterson murder come along with little forensic evidence but a whole lot of circumstantial evidence and motive. In the following paragraphs, I will discuss the forensic evidence discovered that led to the conviction and death sentencing of Laci’s husband, Scott Peterson.

Murder Murderer This teacher is a murderous hot head. It also happens to fit her because she is a redhead. She has been a teacher for 23 years and the annoying children are starting to drive her crazy. The kids and other staff members are starting to notice the difference in her.

75.33 grams Weight of the unknown = 0.23 grams Calculation : 75.33-75.10/0.36x100 = 63.8 % recovery Melting point of

The early 1900s was a time of continued advancement in industrial innovation as well as the creation of deadly made poisons. Chemicals began flooding into everyday products and certain methods of healthcare, raising the death toll rate substantially. The men behind a new made justice system, what the poisons were in, and a range of murder cases with these chemicals as the weapon are all addressed The documentary American Experience, “The Poisoner's Handbook “. Charles Norris and Alexander Gettler became the face of a new method of criminal justice system in the birth of forensic science using chemistry. Norris being the medical examiner while Gettler titled with the chief toxicologist.

Stoichiometry is a method used in chemistry that involves using relationships between reactants and products in a chemical reaction, to determine a desired quantitative data. The purpose of the lab was to devise a method to determine the percent composition of NaHCO3 in an unknown mixture of compounds NaHCO3 and Na2CO. Heating the mixture of these two compounds will cause a decomposition reaction. Solid NaHCO3 chemically decomposes into gaseous carbon dioxide and water, via the following reaction: 2NaHCO3(s) Na2CO3(s) + H2O(g) + CO2(g). The decomposition reaction was performed in a crucible and heated with a Bunsen burner.

Procedure A. Preparation of NaOH solution The molarity of a solution is the ratio of the number of solutes dissolved in a liter of solution. To figure out the needed mass (in grams) of NaOH pellets to be dissolved in a 0.25 L of water, remember that a mole is equivalent to the quotient of mass over the molar mass of the substance. This was used to rearrange the base formula and to derive the mathematical equation of mass in terms of molarity. mass (g) =