Spectroscopy‚ Boiling point and Melting point. Introduction: - Infrared spectroscopy has also made a break though in medicine. It used to evaluate the kidney stone diseases thus broadening the use of IR in different ways. The purpose of this lab experiment is to identify the unknown solutions using the Infrared Spectroscopy (IR)‚ boiling point‚ and melting point (1). The IR helps to determine the compounds such as a functional group. In order to analyze the compound‚ IR and melting point work the best together
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NT2640 Unit 9 Labs Detailed Lab Step Answers: 25 answers Step 6. Full duplex 100Mb/s Step 10. show interfaces status Detailed Lab Step Answers: Step 5. 0200.0000.AAAA Fa0/11 0200.0000.BBBB Gi0/1 0200.0000.1111 GI0/2 0200.000.2222 Gi0/1 Step 9. 0200.0000.2222 Fa0/12 0200.0000.1111 Gi0/1 0200.0000.AAA Gi0/1 0200.0000.BBBB Gi0/1 No Detailed Lab Step Answers: Detailed Lab Step Answers: Step 5.
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Purpose: a) Determine the melting points of two organic compounds known to have the same melting range when pure. b) Determine the mixture melting point of a mixture of the two pure compounds. c) Identify an unknown organic compound by determining its melting point and mixture melting point. Procedure and Observations: Using the procedure outlined in Appendix A of the Lab Manual‚ approximately equal samples of p-Nitrophenol and acetanilide‚ which are known to have the same melting range
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Investigation of the point of incipient plasmolysis of onion cells (Allium cepa) using NaCl (Sodium Chloride) concentrations of 0.1M‚ 0.2M‚ 0.3M‚ 0.4M‚ 0.5M‚ 0.6M Design Research Question (Aim): The aim of this lab was to determine the point of incipient plasmolysis of onion (Allium cepa) cells using Sodium Chloride (NaCl) concentrations of 0.1M‚ 0.2M‚ 0.3M‚ 0.4M‚ 0.5M‚ 0.6M. Hypothesis: When the water concentration of a solution outside the cell is lower than the concentration inside the cell
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constant. Use potassium chloride with a known conductivity as a standard solution. The conductivity measurements are not appropriate to compare between two electrolyte solutions because of the high dependant towards solution concentration. The molar conductivity (Λm) measurements would be more appropriate. Λm could be determined from the conductivity value: [pic] where C is the electrolyte concentration In mol/L. the unit is S cm2mol-1 If the dependant of conductivity towards concentration
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Results My unknown sample was number 18. I did three melting point trials‚ which resulted in a melting point range of approximately 120°C to 122°C‚ as shown in Table 1. I also did two mixed melting point trials using Benzoic Acid and Succinimide‚ as shown in Table 2. Percent recovery is 28.26 grams. Table 1: Unknown Melting Point Trials Trial Melting Point 1 120°C – 122°C 2 120°C – 122°C 3 119°C - 122°C Table 2: Mixed Melting Point Trials Trial Benzoic Acid MP Unknown #18 MP Succinimide MP
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melt. This only works‚ however‚ if the temperature outside is at or near freezing. If it is too cold outside‚ the ice itself becomes very dry and salt is not as effective in melting it. Salt Reduces Freezing Temperature of Water * Salt works by lowering the freezing temperature of water. Salt water needs to reach a colder temperature than pure water to freeze. This is why salted ice on roads that are near the freezing temperature of pure water (32 degrees Fahrenheit) will melt and not refreeze
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Laboratory #2 Lab #2: Perform a Vulnerability Assessment Scan Using Nessus® (Nessus® is a Registered Trademark of Tenable Network Security‚ Inc.) Learning Objectives and Outcomes Upon completing this lab‚ students will be able to complete the following tasks: * Identify risks‚ threats‚ and vulnerabilities in an IP network infrastructure using ZenMap GUI (Nmap) to perform an IP host‚ port‚ and services scan * Perform a vulnerability assessment scan on a targeted IP subnetwork using
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Lab 1: Low Nail Company |Scenario/Summary | After making some wise short-term investments at a race track‚ Chris Low had some additional cash to invest in a business. The most promising opportunity at the time was in building supplies‚ so Low bought a business that specialized in sales of one size of nail. The annual volume of nails was 2‚000 kegs‚ and they were sold
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substance. Here is a tutorial for an over view and for a reference as you work through these problems http://www.wiley.com/college/chem/spencer053872/tutorial/gramsmoles/gramsmoles1.html We can use this to do mathematical conversions to determine mass‚ volume‚ and number of atoms or molecules in a given substance. For example let’s check out this video to convert moles methane (CH4) to grams of methane. http://www.sciencegeek.net/Chemistry/Video/Unit4/GMV2.shtml Once you have finished the video
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