Virtual Chem Lab 6-2 & 6-3 Anonymous CHM/110 June 16‚ 2014 Zamir Deen Virtual Chem Lab 6-2 & 6-3 Ranking Salt Solutions by pH 6-2: Ranking Salt Solutions by pH In this assignment you will be asked to rank aqueous solutions of acids‚ bases‚ and salts in order of increasing pH. This is most easily done by first identifying the strong acids that have the lowest pH‚ the strong bases that have the highest pH‚ and the neutral solutions that have a pH near 7. The weak acids will have a pH between
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Epoxidation Reactions Lab Report 2 Abstract An oxygen atom is transferred from a peroxy acid to the carbon=carbon double bond thus forming an epoxide. Scheme 1. Oxone Epoxidation. Scheme 2. mCPBA Epoxidation. The percent yield for the Oxone epoxidation reaction was 65% yield and the mCPBA epoxidation reaction was 70% yield. Oxone is the greener alternative because using mCPBA is twice as expensive as Oxone and leaves behind the epoxide plus m-chlorobenzoic acid while Oxone creates non-toxic
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Lab: investigating hooked law with springs Purpose: to find spring constants of different springs using the slope of a graph of change in heights vs. the weight force. Also‚ to be able to understand how spring constants change when you add springs in a series or paralle Pre lab predictions: We predicted that the graph of gravitational force (mg) as a function of stretch (delta x) would look like Data: Spring #1: y = 8.2941x + 0.0685 This table represents the different distances that
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increases. Effect of Stimulation Frequency on Contraction 2. As the frequency of stimulation increases‚ the force of contraction: increases. Materials and Methods Measurement of Threshold Stimulus 1. Dependent Variable contraction force 2. Independent Variable stimulation voltage 3. Controlled Variables muscle fiber length; frequency of stimulation; temperature Effect of Muscle Length on Contraction 1. Dependent Variable contraction force 2. Independent Variable muscle fiber length 3. Controlled
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Virtual Chem Lab 6-2 & 6-3 Anonymous CHM/110 June 16‚ 2014 Zamir Deen Virtual Chem Lab 6-2 & 6-3 Ranking Salt Solutions by pH 6-2: Ranking Salt Solutions by pH In this assignment you will be asked to rank aqueous solutions of acids‚ bases‚ and salts in order of increasing pH. This is most easily done by first identifying the strong acids that have the lowest pH‚ the strong bases that have the highest pH‚ and the neutral solutions that have a pH near 7. The weak acids will have a pH between
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LAB REPORT FOR EXPERIMENT #2: PURIFICATION OF ACETANILIDE BY RECRYSTALLIZATION Your name TA’s name Your Partner’s name Lab Section OBSERVATIONS: A. SELECTING A RECRYSTALLIZATION SOLVENT | |Solubility Test (cold) |Solubility Test (hot) | |Water |insoluble |soluble | |pet ether |insoluble
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1. Coagulase 2. this will differentiate Staphylococcus aureus from Staphylococcus epidermidis. 3. B. Staphylococcus aureus 4. the plasma clotted (gelled)‚ indicating a positive coagulase‚ which indicates S. aureus having followed the diagnostic scheme so far. the beta-hemolysis of this particular strain of S. aureus is not diagnostic of the species. Some strains produce the hemolysin‚ while others don’t. 5. B. Alpha hemolytic and small. (There is a greenish color of the red blood
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r Virtual Lab: Enzyme Controlled Reactions Instructions 1. Go to the following web-link in order to open the Virtual Lab: http://www.mhhe.com/biosci/genbio/virtual_labs_2K8/labs/BL_02/index.html 2. Open the Virtual Lab: Enzyme Controlled Reactions 3. The virtual lab simulation will be on the right side of the screen‚ and the “Question” column will be on the left side of the screen. 4. Click the monitor in the lab simulation to watch a video about enzyme action. 5. Click the “Information”
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Toxicology Lab 1. In this investigation‚ a wide range of concentrations of Sodium Chloride (NaCl) solution were created and the effects that they had on radish seeds were tested. This ultimately created a doseresponse experiment in which it was detectable whether or not radish seeds were a reliable bioassay for the toxicity of NaCl. The goal of this experiment was to determine a correlation between toxicity and seed germination/radicle
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There is a lot of advertising in our society today‚ but why is it that people seem so manipulated by advertising? Research shows that many people need their dayli dose of it in order to buy more things they actually do not need. “There has been an increase of 90% in advertising compared to the last ten years“ says the New York Times. Advertising is a manuplating way of getting people to buy things. One time Will Roger said: “Advertising is the art of convincing people to spend money they don’t
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