CaCl2*2H2O)(1mol Na2CO3/1mol CaCl2*2H2O)(106g Na2CO3/1mol Na2CO3) = 0.72g Na2CO3. The final‚ when its dried in the paper filtered weighed at 1.6 grams. Experiment and Observations: As I performed the lab‚ I had to retrieve all my equipment’s from my labpaq. As I started to setup‚ I had to weigh out 1.0 gram of CaCl2*2H2O on the digital scale. After it was weighed‚ it was added to the 100 mL beaker and 25 mL of distilled was added and stirred. Next‚ I had to figure out the amount of the second reactant
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Liquids & Solids Pre Lab Questions: 3pts 1. What are the learning goals of this lab? The learning goal of this experiment is to view and experience the melting point and boiling point of different substances. 2. Why is acetamide not allowed in contact with your skin? What precautions does one have to take to work with this chemical? Acetamide is a carcinogen‚ which can cause cancer. Therefore‚ it should not be allowed to come in contact with a person’s skin. Any person working with this chemical
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PURPOSE The purpose of this experiment is to become familiar with the separation of mixtures of solid and learn separation techniques based on the chemical properties of a substance. PROCEDURES 1. Separating out the Iron a. Use your digital scale to determine the mass of your weighing dish. b. Empty the entire mixture of solids from the plastic bag into the weighing dish and determine the gross mass of the total mixture and weighing dish. Compute the net mass of the mixture: this is equal
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Properties of Gases CHE101 Experiment date: 06/20 Write-up date: 06/21-06/22 Purpose: The purpose of this experiment is to examine different properties of gases in order to be able to identify them in a laboratory setting. I will be using Hydrochloric acid‚ mossy zinc‚ Bromothymol blue‚ limewater‚ Manganese‚ and Alka Seltzer‚ to test different properties of gases formed by chemical reactions. In order to extract the gas I will use several household products such as vinegar‚ baking soda‚ water
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AL FAISAL UNIVERSITY College of Science and General Studies Introduction to Chemistry‚ CHM 102 Spring‚ 2015 Course Information: Section 1: Class Time: Mon.‚ Wed.: (13 PM – 14.30 PM) Class Location: Male S1.036‚ Female S2.031 Faculty Contact Information: Instructor Name: Prof. Mohammed Zourob Office number: SG-56 Office Hours: Mon. and Wed.: (10-13) or by Appointment. E-mail: mzourob@alfaisal.edu Course Description: This single-semester‚ terminal course is designed to provide engineering
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chemical compound‚ write the IUPAC name (no common names). 2. Given the IUPAC name of an ionic or molecular compound‚ write the chemical formula associated with it. Materials: Student Provides: The exercises below. From LabPaq: Nothing required. Discussion: At this point in the course you have used the periodic table as your reference for where the elements are located. The Periodic Table will be the most important tool to have on hand for this exercise and for every
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The Endocrine System Exercise 1: The Pituitary Gland obseRvations A. Please describe in detail the structures and features you observed on the pituitary gland slide. The Pituitary Gland Slides The Anterior Pituitary Gland was darker than the Posterior Pituitary Gland. In the Anterior Pituitary Gland Slide you can see Chromophobes and Acidophiles. Not super easy to distinguish which is which though. The Posterior Pituitary Gland slide showed Pitulcytes (Neuroglia) as light purple
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Calculations For this experiment‚ the osmolality given by the machine was equal to the molality. 1) Finding the identity of a unknown substance Molar Mass of Possible unknown substances (g/mol): * Glycine: 75.067 * Glucose: 180.155 * Mannitol: 182.171 * Sucrose: 342.26 * Lactose: 360.312 Results: Table 1.1: Table showing the results for the osmolality. 200mg of the unknown was dissolved with 10mL of doubly deionized water. A 0.2mL sample was taken and placed in the
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COURSE SYLLABUS DEPARTMENT COURSECODE / Course Title Prerequisite : COURSECODE Prerequisite to : COURSECODE/S Type of Course : (major course‚ basic course) Faculty : (give names of faculty / if course is not departmental) Term/Time/Room : (e.g. Term 3 SY 2008-09; MWF 0700-0800; L000) Course Description : (introduces synopsis of course) Objectives/Values : (enumerates purposes of course‚ knowledge‚ skills‚ values and competencies expected to be developed‚ and output expected
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Boiling Point Elevation 4-4 Boiling Point Elevation If you dissolve a substance such as ordinary table salt (NaCl) in water‚ the boiling point of the water will increase relative to the boiling point of the pure water. In this assignment‚ you will dissolve a sample of NaCl in water and then measure the boiling point elevation for the solution. 1. Start Virtual ChemLab and select Boiling Point Elevation from the list of assignments. The lab will open in the Calorimetry laboratory with a calorimeter
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