Visca‚ Baybay City‚ Leyte Name: Alecsa May S. Celaya BS-Chemistry 3 Date Submitted: December 19‚ 2014 Lab. Schedule: MW 2:00 – 5:00 pm Rating: Group No. 11 Experiment No. 5 Preparation of KAl(SO4)2•12H2O (Alum) OBJECTIVES This experiment aimed to: prepare KAl(SO4)2•12H2O‚ commonly referred to as alum‚ from aluminum metal from a canned soft drink‚ and determine the mass of the alum collected and its percent yield. METHODOLOGY An aluminum metal scrap was obtained by scraping the paint
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Alum Synthesis: The Chemical Process of Recycling Aluminum Introduction By recycling aluminum cans‚ the costs and energy savings are dramatically more resourceful and efficient than producing aluminum from what it is naturally found in‚ bauxite ore. The process of recycling aluminum to produce potassium aluminum sulfate‚ a common alum‚ will be done through a serious of chemical reactions. Through this reaction‚ percent yield will be determined. Materials and Methods The mass of a 250 mL
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The Formation of Alum Experiment 4 Introduction In an increasing population the need for land fields are as well increasing daily. Better yet‚ rather than dumping off trash is to instead recycle aluminum cans for a more efficient society. In this lab we will show how aluminum cans react to form alum. Materials and Methods The first step of the lab is to measure the mass of 250 mL beaker‚ once you have done this add .9 to 1.2 grams of aluminum can pieces to the beaker. Take the mass once
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PREPARATION OF POTASH ALUM [(K2SO4.Al2(SO4)3.24(H2O) Aim: To prepare a pure sample of potash alum. [K2SO4.Al2(SO4)3.24H2O] Principle: Potash alum is prepared by dissolving an equi molar mixture of aluminum sulphate and potassium sulphate in minimum amount of water containing a little amount of sulphuric acid and then subjecting the solution to crystallisation; octahedral crystals of potash alum separate out. Apparatus required: Beaker (100 ml) Trough Funnel Wire gauze Conical
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Analysis of Alum‚ AlK(SO₄)₂ •12H₂O Purpose The purpose of the experiment is to confirm whether the compound is Alum. Introduction Percent composition is defined as part divided by whole multiplied by 100. Water of hydrogen is defined as the amount of water produced into a molecule prepared in an aqueous solution. Molecular formula indicates the actual numbers and type of atoms in a molecule (notes). Procedure The procedure in this experiment is to determine melting point and mole ratio of
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foil to alum. Alum is used in cooking‚ to treat wastewater‚ and is used in common deodorant. In this lab a series of four reactions will occur to yield alum. Calculations: Aluminum foil: 0.5035 grams Alum & Watch Glass: 21.7691 grams Watch Glass: 15.1560 grams Alum: 6.6131 gram Theoretical Yield of Alum: 2Al(s) + 2KOH(aq) + 4H2SO4 + 22H20 -> 3H2(g) + 2KAl(SO4)2 + 12H2O(s) 0.5035gAl x 1molAl/ 26.98gAl = 0.0186 mol Al 0.0168molAl x 2molAl / 2mol KAl(SO4)2 = 0.0186mol KAl(SO4)2 0.0186mol
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Preparation of Potash Alum A PROJECT REPORT SUBMITTED TO CHEMISTRY DEPARTMENT DIST: AMRELI GUJARAT BY:-ANURAG AGARWAL ROLL NO: XII SCI. 2009-2010 PRINCIPAL INTERNALEXAMINER EXTERNAL EXAMINER CERTIFICATE Certificate This is to certify that this project work is submitted by ANURAG AGARWAL to the Chemistry department‚ Aditya Birla Public School‚ Kovaya was carried out by him under the guidance & supervision during academic year 2008-2009
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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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