Beer’s Law Problem Set Spring 2013 1. Calculate the absorbances corresponding to the following values of the percentage of transmitted light: (Provide your final answer with three decimal places) a. 95% b. 88% c. 71% d. 50% e. 17.5% f. 1% 2. A solution of a compound (1.0mM) was placed in a spectrophotometer cuvette of light path 1.05cm. The light transmission was 18.4% at 470nm. Determine the molar extinction coefficient. Include units in your answer. 3. The molar extinction coefficient of reduced
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Colorimetry Introduction Absorption Spectroscopic methods of analysis rank among the most widespread and powerful tools for quantitative analysis. The use of a spectrophotometer to determine the extent of absorption of various wavelengths of visible light by a given solution is commonly known as colorimetry. This method is used to determine concentrations of various chemicals which can give colours either directly or after addition of some other chemicals. As stated by the Beer-Lambert Law
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The Wheelchair Experiment Why do people feel that it is acceptable to judge others? Why is it so difficult to lend a helping hand? During my brief time in a wheelchair‚ I discovered that hate and judgment towards individuals with disabilities still exists. For this project‚ I visited a local Target location and used a motorized wheelchair to navigate around the store. Through my time in a wheelchair‚ I discovered how difficult life could be if I were dependent on a wheelchair. As an able bodied
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Natural law or the law of nature (Latin lex naturalis) is law whose content derives naturally from human nature or physical nature‚ and therefore has universal validity. In natural law jurisprudence‚ the content of man-made positive law is related to natural law‚ and gets its authority at least in part from its conformity to objective moral standards. Natural law theory attempts to define a “higher law” on the foundation of a universal understanding that certain choices in human life are good or
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An Introduction to Lab Procedure Purpose: To obtain a higher understanding of lab techniques. Procedure Part A 1- Draw about 400 mL of deionized water into a clean beaker‚ and let it stand for 15 minutes to equilibrate to room temperature. Note‚ there is only one deionized water tap in the lab room; make sure you use the correct tap. 2- Confirm that your 10.00 mL volumetric pipet is clean by filling to above the mark with deionized water and then letting it drain. Your pipet is a
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LS160-Criminal Law and Procedure BIBLIOGRAPHY A Articles/Books/Reports Hayes‚ Robert & Eburn‚ Michael‚ Criminal Law and Procedure in NSW Chesterman‚ Michael‚ Criminal Trial Juries in Australia Crimes Act 1900‚ NSW Criminal Procedure Act Legislative Council Select Committee on the partial defence of provocation – Inquiry into the partial defence of provocation‚ July 2012 B Websites www.judcom.nsw.gov.au/publications www.hcourt.gov.au www.parliament.nsw.gov.au www.lawlink.nsw.gov
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Experiment 1: Simple and Fractional Distillation of a Binary Mixture Aim: The aim of this experiment is to perform a simple and a fractional distillation and separate a mixture containing two liquids‚ cyclohexane and toluene. Post Lab: At any given temperature a liquid is in equilibrium with its vapor. This equilibrium is described by the vapor pressure of the liquid. The vapor pressure is the pressure that the molecules at the surface of the liquid exert against the external
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First‚ everything about the experiment was completely wrong. It wasn’t an honest experiement. The lies‚ affected the experiement. The woman in the video is thinking‚ that she is getting her answers corret‚ which isn’t true. It was just a way the man used to try to impress the woman‚ by telling her she was correct. The man in the study that was actually getting most of them correct‚ and he was the one getting frustrated from the electric shocks. This experiment can be improved to meet
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Safety Precautions and Lab Procedures Bret Niemeyer Abstract—The purpose of this paper is to provide you with safety precautions‚ lab procedures and reference materials to equip you with useful information in the computer electronics and technology fields. The topic is not complete‚ however it should introduce concepts and provide a framework of where to obtain important information for your safety and well-being. shut down of instruments. I. INTRODUCTION HIS DOCUMENT examines safety precautions
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Purposes of Criminal Law Introduction The question as to what the criminal law aims to accomplish is one that cannot be easily answered as criminal law has a wide variety of purposes that work individually to manage different aspects of society. These purposes are split into two categories‚ instrumental and non-instrumental that together aim to accomplish a healthy balance between justice and equality for both criminals and citizens (Daly 2012‚ 390). In saying that‚ criminal law does serve a number
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