Chem 102 - Lab #2 Quantitative Analysis of a Soluble Sulfate Steven English Lab Instructor: Dr. Campo Date: Tuesday‚ February 5th 2013 Pre-Lab Questions A. Adding the acid to the sodium sulfate solution results in an increase in the solubility of any free anions present in the sample. This will happen because the present anions will bind with the hydrogen cations present in the acid. B. The sodium sulfate is boiled because experiments have shown that barium sulfate is 50
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Sodium chloride‚ also known as salt‚ common salt‚ table salt‚ or halite‚ is an ionic compound with the formula NaCl. Sodium chloride is the salt most responsible for the salinity of the ocean and of the extracellular fluid of many multicellular organisms. As the major ingredient in edible salt‚ it is commonly used as a condiment and food preservative. [edit] Properties Thermal conductivity of pure NaCl as a function of temperature has a maximum of 2.03 W/(cm K) at 8 K and decreases to 0.069 at 314
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GRAVIMETRIC DETERMINATION OF SULFATE Purpose You will be given a solid powder‚ which has been dried to constant mass. The sample is water soluble. The purpose of this experiment is to determine the concentration of sulfate in your solid sample using gravimetric analysis. Background Gravimetric Analysis The goal of most quantitative chemical analysis measurements is to estimate the relative abundance of an analyte in a chemical sample. For solid and liquid samples‚ a very common expression
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Discussion/Conclusion In this experiment‚ t-pentyl chloride was synthesis by reacting concentrated hydrochloric acid using nucleophilic substitution sn1. In the substitution reaction the Hydrogen in HCl protonated the alcohol group in t-pentyl alcohol and turned it to a good leaving group (H2O). a tertiary carbon cation was formed. a nucleophilic attach of the negative Cl- attacked the carbon cation forming t-pentyl chloride [7]. As the reaction proceeded‚ extraction and distillation techniques
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Gravimetric Analysis: The Determination of Phosphorus in Plant Food Gravimetric analysis is a quantitative (i.e. how much?) method of classical analysis. The element to be determined is isolated in a solid compound of known identity and definite composition. The mass of the element that was present in the original sample can be determined from the mass of this compound. Plant foods contain three essential nutrients that are not readily available from soils. These are soluble compounds
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Lab 3 Exercise 3.1: Installing the DHCP Server Role‚ Questions 1-3. Question 1: What is the name of the computer you are working from? The Name of the computer is W2K8xx Question 2: What is the Default lease duration of a wired subnet type? Wired less duration will be 8 days Question 3: What are 3 recommendations listed in Server Manager for managing the DHCP Server role? 1. Increase fault tolerance by splitting DHCP scopes 2. Eliminate manual updates of DNS records by configuring dynamic
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Solvent/Water Trap Diagram Rodney Atwaters Halle Bair May 28‚ 2013 Chemistry 36100 Introduction The purpose of this lab was to produce benzoic acid by mixing sodium benzoate with hydrochloric acid. The Hydrochloric acid used in the experiment was a stock solution made by mixing HCl Acid and deionized water. HCl acid‚ historically called‚ muriatic acid or spirits of salt‚ hydrochloric acid is produced from sulfuric acid and common salt‚ NaCl (Princeton.edu). Since the early 1900 ’s‚ sodium
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Frantzy Senat Lab 2.2 Question 1 Which administrative user accounts can create a site? Contos/DomAdmin‚ contoso\EntAdmin‚ emea\EntAdmin‚ d. In the child domain‚ attempt to create a unique user account. Record the names of the accounts that can be used to create new users. Contoso\EntAdmins‚ emea\domadmin‚ & emea\entadmin d. Log off and log on as the EntAdmin user. Repeat steps 4b through 4c to determine whether the EntAdmin user has the ability to view and/or modify the schema. Contoso\schadmin
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32 LAB #2 | Perform a Vulnerability Assessment Scan Using Nessus LAB #2 – ASSESSMENT WORKSHEET Perform a Vulnerability Assessment Scan Using Nessus Course Name and Number: Student Name: Instructor Name: Lab Due Date: Overview This lab demonstrated the first three steps in the hacking process that is typically performed when conducting ethical hacking or penetration testing. The first step in the hacking process is to perform an IP host discovery and port/services scan (Step 1: Reconnaissance
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GS104 Lab Report Experiment # 2 Data Collection David Case: January 23‚ 2015 Experiment #2 Data Collection Objectives: Exercise 1: Formulating a Hypothesis about pitching speed. To form a hypothesis for the pitching velocity of a ball. Use a spreadsheet and math to calculate the actual velocity and determine the accuracy of the hypothesis. I will also roll a large ball to measure its velocity and graph its horizontal motion. Materials: Volley
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