functioning. For example‚ our digestive tract has catabolic enzymes which break apart food for storage and reuse. Our lab experiment studied the relationship of benzoquinone production when altering the pH and temperature of the reaction‚ as well as enzyme and substrate concentrations. We used a Spec 20 to evaluate absorbance at 540 nm. Absorbance represents rate of product formation. We tested the substrate catechol and the enzyme catacholase and recorded the product benzoquinone. The objective
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reaction equation is as follows: Rate of reaction = k [H202]M [I-]N The value of m and n will be calculated from the various runs of the experiment holding either H202 at constant concentration or holding I- at constant concentration Experiment: My lab partner and I first assembled the apparatus that we were to use according to the sample that was used to show us how to conduct the experiment. We added room temperature water into the leveling bulb and filled until the bulb was about half way filled
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n this lab experiment factors that affected solubility are temperature‚ liquids‚ concentration‚ pressure‚ polarity‚ and molecule. In this experiment we use temperature‚ centrifuge‚ and concentration solutions to be able to achieve the results that we wanted. Step one of the experiment was to mix HCl‚ to cause a precipitation form‚ after that we had to decant the solution‚ then we used a centrifuged to separate the the precipitate of the supernatant liquid. After the decant was done‚ then the process
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Chemical Reactions Lab Synthesis Reactions: Synthesis reactions occur when two elements or compounds combine to create one single compound. The general equation of synthesis reactions is: A+B→AB. The following are the complete balanced equations for the five synthesis reactions performed in the lab. Reaction 1: Reaction 2: Reaction 3: Reaction 4: Reaction 5: The reaction of CO2 and water is a prime example of a synthesis reaction. This is a synthesis reaction because it follows the general
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Making an Activity Series of Metals using different Solutions Purpose/ Hypothesis: The purpose of this lab was to clearly identify the reactivity of magnesium‚ zinc and copper. The metals reactivity will be exemplified as it will be tested with different solutions such as zinc sulfate (ZnSO4)‚ copper sulfate (CuSO4)‚ hydrochloric acid (HCL)‚ magnesium sulfate (Mg2SO4)‚ iron (II) sulfate (FeSO4) and tin (II) chloride (SnCl2). This will allow us in creating an activity series to visually see the reactivity
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Julie Nguyen Equilibrium Lab 4-28-14 I. Purpose To study the affect of temperature & concentration changes on systems in equilibrium II. Safety Wear apron Wear goggles Do not spill chemicals Clean up after use Wash hands Chemicals are TOXIC (by Britney Spears) III. Procedure A. Iron-thiocyanate equilibrium Pipet .3mL of 1 M iron (III) nitrate and .3 mL of 1 M ammonium thiocyanate. into clean 250 mL beaker. Add 75 mL of DS water. Mix well. Divide the solution into equal
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Chemistry 1225 Lab Write-Up #13 Abstract Electrolysis is a method of using a direct electric current to drive an otherwise non-spontaneous chemical reaction. During electrolysis‚ hydrogen atoms (H2) are reduced at the cathode whereas the oxygen atoms (O2) are oxidized at the anode. There were three different solutions used in the experiment in order to have a better understanding of electrolysis reactions. From each solution‚ reaction equations were produced. The reactions could be observed from
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NaOHStrong Base 11.95 11.95 10 Rachel Sodium hydroxide 0.01M NaOHBase 11.61 11.72 11 Ammonia 0.1M NH3 Base 9.53 9.48 12 Vinegar 0.83M HC2H3O2 Acid 2.83 2.94 13 Petr Sodium 0.5M NaC6H5O7 Weak Base 9.23 9.21 14 Sodium Sulfate 0.25M Na2SO4 Weak Base 7.24 7.23 15 Potassium Sulfate 0.25M K2SO4 Weak Base 7.37 7.58 Dilution of 1M of acetic acid to 0.1M and 0.5M 0.5M of HCl dilution: Vi(0.5M)(0.025L)1Mx1000=12.5mLof HCl used + 12.5mL of water. 0.1M of HC2H3O2 dilution: Vi(0.1M)(0.025mL)1Mx1000=2.5mL
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Experiment 3: SN1 – Report Sheet Last Name: Abbassi-Mohadjel | First Name: Nora | Date: OCT. 26‚ 2012 | Section Number: 005 (Friday->1:35-5:35pm) | Objective: 1 mark (What is the purpose of this experiment?) In this lab‚ spectrochemical technique was used to determine qualitively the product of a reaction. The purpose was to learn what a SN1 reaction was with combining 2‚5-dimethyl-2‚5-hexanediol and HCl and to learn how to use an infrared spectrum for analyzing the reaction
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Flame Test Lab Question: When a compound is placed in the flame of a burner‚ what happens to the color of the flame? Hypothesis: When the compound is placed in the flame‚ the flame changes color depending on the chemical compound. When they’re heated‚ they gain energy and changed color sometimes. Safety Requirements for this Lab: Wear goggles at all times. If you want to remove them to write in your notebook you may sit at a table in the center of the room. When you sit down remove them
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