Project Report Alum Synthesis - 926 Words

Title: Alum synthesis Author Information: Alexis Luevano-Yatarola*, Francine Herreros, Chemistry 111/112, section 531 Introduction: In today’s society the amount of Aluminum consumed is not completely recognized most of society only tends to think of aluminum cans, however aluminum is in a wide range of everyday products such as car parts, jets, and in household products in which we use everyday. Due to the large amounts of aluminum used and consumed daily recycling the material is a very important aspect, especially when dealing with cost and energy consumption. The main focus of this lab was to take aluminum cans and chemically turn it into alum, which in turn can be used to remake aluminum products which is a better cost and energy†¦show more content†¦Once the Alum crystals had dried they were weighed on a watch glass in which was weighed out to 0.0001 grams before weighing was done. After all the Alum crystals were collected everything was properly disposed of in the proper containers and the station was cleaned. Results and Discussion: The first process of the experiment was when 1.0545 grams of the pieces of aluminum cans were mixed with potassium hydroxide to form the products potassium aluminum sulfate and water. The equation shown below is the unbalanced version Al(s)+KOH(aq)+H2O(l)KAl(OH)4(aq)+H2(g) .The new balanced equation was 2Al(s)+2KOH(aq)+6H2O(l)2KAl(OH)4(aq)+3H2(g). The reaction shown above is a redox reaction due to the transfer of electrons from one element to another.The aluminum was oxidized from 0 to 3+ and the hydrogen in potassium hydroxide was reduced from 1+ to 0. As the reaction was being completed a gas was formed as well as a color change in the liquids used. In order to speed up the reaction a hot plate was used. All of this was done under a fume hood to make sure none of the gases formed was in the air. The next chemical process in the experiment was when the 20 mL of sulfuric acid was added to the solution. The balanced equation is 2KAl(OH)4(aq)+H2SO4(aq)2Al(OH) 3(s)+K2SO4(aq)+2H2O(l) but the total ionic equation is what was used which was Al(OH)4-(aq)+H+(aq)Al(OH)3(s)+H2O(l). The reaction shown was an acid-baseShow MoreRelatedNatural Dyes11205 Words   |  45 Pagesmay be dyed before spinning (dyed in the wool), but most textiles are yarn-dyed or piece-dyed after weaving. Many natural dyes require the use of chemicals called mordants to bind the dye to the textile fibers; tannin from oak galls, salt, natural alum, vinegar, and ammonia from stale urine were used by early dyers. Many mordants, and some dyes themselves, produce strong odors, and large-scale dyeworks were often isolated in their own districts. Throughout history, people have dyed their textilesRead MoreSecurity Issues and Principles Research Paper6107 Words   |  25 Pagessoftware code is sometimes known as a watermark. Recently revived, this formerly obsolete term gained currency in its day (1500) from a work by Johannes Trithemius, Steganographia, ostensibly a system of angel magic but also claiming to include a synthesis of how to learn and know things contained within a system of cryptography. The book was privately circulated but never published by the author because those who read it found it rather fearsome. Special software is needed for steganography, and thereRead MoreThe Extraction of Pectin from Orange Peels13647 Words   |  55 PagesCERTIFICATION This project report is certified by the supervisor and approved by the head of department of chemical engineering. Supervisor: HOD: Date: Date: DEDICATION This project work is dedicated to God Almighty, the Source of all wisdom, to him glory and honour be forever Amen. ACKNOWLEDGEMENT I wish to express my profound gratitude to all my lecturers, especially the Head of Department (HOD) ChemicalRead MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 PagesSingapore Taipei Tokyo Editorial Director: Sally Yagan Director of Editorial Services: Ashley Santora Acquisitions Editor: Brian Mickelson Editorial Project Manager: Sarah Holle Editorial Assistant: Ashlee Bradbury VP Director of Marketing: Patrice Lumumba Jones Senior Marketing Manager: Nikki Ayana Jones Senior Managing Editor: Judy Leale Production Project Manager: Becca Groves Senior Operations Supervisor: Arnold Vila Operations Specialist: Cathleen Petersen Senior Art Director: Janet Slowik Art