(aq) + SCN– (aq) ←→ FeSCN2+ (aq) A big part of this lab includes understanding (and in the end proving) that absorbance is directly proportional to the concentration of a solution (Beer’s Law)‚ and if Absorbance v. Concentration is graphed‚ a straight line will result. The regression line’s equation is used to determine the concentration of an unknown solution once the percent of T has been measured. The equation of Beer’s Law (A=abc) is an efficient way of
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How sodium chloride concentration affects the germination‚ growth and development of Brassica rapa. Osumi‚ K.‚ Nihei‚ B.‚ Takanishi‚ K.‚ Nakamura‚ C.‚ Warehime‚ R. Period 2. 03/05/17 Introduction: To have a successful germination‚ the plant seed needs a sufficient amount of water and oxygen present. Other conditions include room temperature‚ and the amount of light intake. Hydration of a seed‚ is an essential step for seed germination (Martínez-Andújar‚ 2014). Plants tend to germinate better in
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LAB 10: NAME: DaeNia La Rodé DATE: 25TH January‚ 2011. FORM CLASS: L6 3 SUBJECT: Biology TITLE: Enzymes AIM: To investigate the effect of substrate concentration on the enzyme amylase INTRODUCTION: Enzymes are perhaps one of the most important proteins of the human body. Enzymes such as amylase‚ an enzyme that breaks down carbohydrates‚ work by means of surface catalysis. In other words‚ the surface of the enzyme enables other molecules to react in a manner they would not be able to without
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For this data analysis project‚ I conducted and experiment to investigate how the concentration of an acid affects the rate of the reaction. I have set up the experiment’s equipment as shown on figure 1. As you can see by figure 1‚ I have used the reaction between sodium thisoulphate solution and hydrochloric acid (HCL) to come up with results that will help me draw conclusions regarding the effects of the concentration of the acid. I decided to use this particular reaction due to the fact that the
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Determination of the Concentration of Acetic Acid in Vinegar Lab Exercise 4 CHEM 1106 9/19/12 Purpose: Standardize a sodium hydroxide solution using a primary standard acid. Determine the molarity and the percent by mass of acetic acid in vinegar by titration with the standardized sodium hydroxide solution. Introduction: Vinegar is a dilute solution containing acetic acid. Since vinegar has a low pH‚ it can be titrated with a base. Titration is a method used in order to ascertain
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The aim of this experiment is to better understand the process of fermentation of yeast in different concentrations of sucrose. The experiment worked with yeast and sugar (sucrose and glucose) to determine the rate of fermentation by testing the pressure of C02 in the test tube. The experiment tested the metabolic capability of yeast anaerobically meaning no oxygen was present (this was ensured by the thin layer of oil on the top of the solution). This means that the metabolic rate of the yeast could
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were accurate‚ I made sure I accurately measured out the amylase and starch solutions for each experiment. This is because‚ if I had the wrong amounts‚ I would not get a valid conclusion‚ as I will not know whether my results are affected by the concentration of starch‚ or whether the results I got were due to the amounts of solution used. This would make both my results and conclusion invalid and unreliable. I also made sure that the temperature of the water bath was at the correct temperature and
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Dachau concentration camp Dachau was not horror camp not like Auschwitz and Belzec that killed over 1‚700‚000 together.Auschwitz was famous for being the most horrific camps‚but it was not the first or long lasting concentration camps.Dachau camp was made of an old World War I munition factory.SS Weinrich Himmler announced the camps creation‚so people (Jews) were put on trains to arrive at Dachau.All of the many concentration camps (Death camps) made medical experiments on some of their
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Treblinka Concentration Camp The Holocaust was a horrifying event. Adolf Hitler rose to power in 1933. Later they started constructing places to hold the Jewish and other people they called these place concentration camps.Treblinka was one of those camps. Treblinka was a part of Hitler’s final solution. Now you will learn about this terrible camp. “In July of 1942‚ the Operation Reinhard authorities had finished a killing center‚ known as Treblinka II.” (Treblinka) From late July and September 1942
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Buchenwald Concentration Camp The Buchenwald Concentration Camp was a concentration camp that the Germans used for practically labor of the prisoners until they died or were killed by the SS. Hitler who was the Nazi leader wanted all the people that weren’t the Aryan race to die because they were not perfect. “The Buchenwald camp was located in Weimar Germany and was established in 1937. The main camp was constructed in a wooded area in the northern slopes of Ettersburg. Before the Nazi takeover
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