Hess Law

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Chem 1 Lab Exam # 3 Study Guide
Hess’ Law:
• What is Hess’ Law?
• Know the three reactions.
• Calculate the heat of the reaction per mole of reactants from each reaction.
• Memorize the equation used.
• Don’t memorize the dCp constant.
• Do problems from Hess’s law lab extension

Making Alum from Aluminum
• Know the procedure for the lab.
• Be able to calculate the theoretical amount of alum formed given a certain amount of Al to start.
• Know the mole ratio for the reaction. Don’t memorize the molar mass of alum.
• How was aluminum changed throughout the whole reaction process? What compounds were formed?
• How is the solubility of alum in water affected by temperature?
• Why was methanol used to dry the crystals?
• Be able to calculate percent …show more content…
• Why do atoms produce an emission spectrum instead of producing a continuous rainbow-like spectrum?
• Are any two emission spectra the same for different elements?
• The emission spectrum of hydrogen is a lot simpler than the emission spectrum of other elements, why?
• Why was it necessary to “calibrate” your spectroscope box? And, how did we do that?
Know how to…
• Determine wavelength values by looking at a calibration curve.
• Convert wavelength values in nanometers to corresponding photon energy in kJ/mole.
• Calculate the value of the Rydberg constant, in kJ/mol, for a wavelength. The Rydberg equation would be given.

Writing Lewis Dot Structure
Know how to…
• Draw lewis dot structures, expanding octets when necessary to minimize formal charge.
• Predict the number of resonance forms present for a given dot structure.
• Predict the best skeletal structure or the most dominant resonance form by using formal charges.

Molar Ratio-Redox Titration
• Know the answers to any of the “further questions” at the end of this lab.
• Understand why we were able to say moles Fe2+ titrated was the same as moles Fe3+ that reacted with

Rudolf Hess: Perpetrator Of Anti-Jewish Law

Triangle, Rudolf Hess is a perpetrator of the Holocaust because he legislated many anti-semitic laws. According to Alfred D. Low, “An early enemy of the Jews, he [Hess] greatly influenced the anti-Jewish legislation of 1935”(Low 108). This was only the beginning of the suffering for the Jews. The article “People of the Holocaust” points out that, “As Hitler’s deputy, Hess signed the Nuremberg racial laws”(“People of the Holocaust” 207). According to “People of the Holocaust,” “These laws, which took…

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2014 07 17 Essay

Police culture is a result of the type of job that police officers do day in and day out. According to Hess, Orthmann and Miller (2011), “… many police officers develop a fierce loyalty to each other. This unique conglomeration of organizational values, beliefs and expectations that is passed on to newcomers in the department is known as the police culture” (p. 36-37). Some positives of police culture are that it can act as a support system for police officers that are in a very difficult job…

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Taking A Look At Hess Gas Company

Hess Gas Company is known worldwide and throughout the country. It has headquarters from the mid-east coast to china and Australia. There are Hess gas stations everywhere in New Jersey fueling automotive everywhere. Hess also provides electricity, natural gas and fuel oil, plus energy solutions, to commercial, industrial, institutional and small business customers. Hess is also developing two natural gas-fired power plants in New Jersey. Hess Energy Marketing is the largest provider of electricity…

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The Salem Witch Trials Essay

of crime. Ley's suicide was the most extreme example of the many ways the defendants responded to the trial. The reaction of the others covered a very wide spectrum, from confident defiance to full admission of responsibility. In the case of Rudolf Hess, Hitler's former deputy, the reality was almost complete memory loss. Two prisoners in particular came to represent opposite poles in their reaction to the trials and the accusation of massive crimes. Hermann Goering, the man Hitler chose as his successor…

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The Dangers Of Working In Law Enforcement

(Harr & Hess 2010). Being able to take this criticism and grow from it is a strong positive characteristic that will set you ahead of others in the long run. Also, it will make you more likeable from others if you take their good advice into account and act on it (Harr & Hess 2010). The last important thing to do is to continue to set goals for yourself within the career path. This will help you continue to grow as a person and not become complacent or unsatisfied with the job (Harr & Hess 2010).…

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Hess Herzl And Nordau Analysis

To understand how Hess, Herzl and Nordau came to the same point of view about assimilation is to understand where they came from. They still had different circumstances growing up and even when they became anti-assimilation happened at different times of their life. No two Zionist thinker’s life growing up was the same yet they still came together to have the same point of view. Moses Hess can be considered a somewhat flip floppier kind of thinker but also an advanced intellectual who studied…

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Interrogations And False Confessions

Interrogating a suspect is an activity performed by law enforcement officers that requires acumen. An interrogator must be able to extract information from an offender which can be an arduous endeavor if the perpetrator believes that by admitting involvement or guilt they are acting against their best interest. However, the interrogation process is a high-stakes game that could potentially alter the course of an individual’s life. Thus, it is imperative that interrogators employ a strategy that elicits…

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Juvenile Justice: Protective Factors

in the book, ‘Juvenile Justice,’ by Hess et al, it defines protective factors as behaviors or factors which reduces the impact that risk factors have on children and which causes there to be a lesser chance of delinquency. The book also defines protective factors as the opposite of risk factors, in that while risk factors can cause a higher chance for a child to be a delinquent, protective factors can cause a lesser chance for a child to be a delinquent (Hess et al, 2013, p. 419). In chapter 4, on…

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Community Policing Research Paper

Abstract This paper is outlined in four parts. The introduction offers a summary of community policing together with the crucial function that community policing contribute to counter violent extremism. The next part, "Highlighting the Threat," fine points some of the vicious extremist threats that face communities nationally and described radicalization to aggression. Part three, "Key Principles," describes the five major community policing standards or principles, and finally the conclusion restates…

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Road To Revolution: Is Road To Revolution Justified?

political freedoms, had occurred such as taxation without representation, closing the port of the Boston Harbor, and laws put into place by parliament. Taxation without representation occurred, which failed to - protect political freedoms, because they were taxing the colonist. Closing the port of Boston during the intolerable acts, but by closing the port of Boston no one 2 Hess & Mertz…

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