Introduction Atoms‚ molecules‚ compounds and mixtures‚ although they may not seem it‚ are different. Atoms make up all of the above and elements. They are made an equal amount of protons and electrons. Molecules are made when two or more atoms connect chemically. Like molecules‚ compounds are made when two or more atoms connect chemically. Unlike molecules‚ the atoms need to be two or more different elements. Mixtures are made of two or more compounds or elements. Mixtures can look completely the same
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Laboratory 2 DRYING OF SOLIDS (Vacuum Tray Dryer) A Final Report Submitted to Engr. Luis K. Cabatingan Instructor‚ ChE 512L By Madeja‚ Rayam John D. July 31‚ 2012 1. Introduction Drying generally means the removal of relatively small amounts of liquid from materials. It is also defined as the transfer of liquid from a wet solid into an unsaturated gas phase. The goal of most drying operations is not only to separate a volatile liquid‚ but also to produce a dry solid of a desirable size
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Separation Processes – An Overview By Farhan Ahmad farhanahmad@uet.edu.pk DEPARTMENT OF CHEMICAL ENGINEERING Course Details: Subject Subject code Contact hours Credit hours Separation Processes Ch.E. - 310 3+3 3+1 Evaluation Procedure: Sessional 30 % (Quizzes + Attendance + Class participation + Assignments) 30% 40% 3 Mid term Final term Course Outline Introduction to Mass Transfer Operations Selection criteria among different separation processes Complete design
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Carbon and Its Compounds Carbon: Introduction Atomic Number: 6 Electronic Configuration: 2‚ 4. Valence electrons: 4 Property: Non-metal Abundance:- Carbon is the 4th most abundant substance in universe and 15th most abundant substance in the earth’s crust. Compounds having carbon atoms among the components are known as carbon compounds. Previously‚ carbon compounds could only be obtained from a living source; hence they are also known as organic compounds. Bonding In Carbon:- The Covalent
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the quantification of albumin and casein were performed and analyzed after extraction of the said proteins from their respective sources. Isolation of proteins was initiated by the breakage of the cell wall / membranes in three different ways. Homogenization of invertase‚ albumin and casein were achieved via grinding process‚ addition of 1M acetic acid and acidification by 0.1M hydrochloric acid correspondingly. Extraction of invertase and casein involved precipitation through the utilization of 95%
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Foundation Improving social well-being through education‚ research and innovation Social Policy Education Capacity Building Teachers Apply for Funding Nuffield Foundation » Teachers » Practical Biology » > Bio molecules » DNA » Extracting DNA from living things Practical Biology A collection of experiments that demonstrate biological concepts and processes. In partnership with Society of Biology logo Search Practical Biology go Society of Biology CLEAPSS Topics > Cells to systems >
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primary standard to analyze acid and base solutions Acid-base titration Lab 13G Jake Shewchuk Lab 13C Dominique Genereux Purpose 13G: 1. To prepare a standard solution of oxalic acid and use it to standardize an unknown sodium hydroxide solution. Purpose 13C: 1. To titrate a hydrochloric acid solution of “unknown” concentration with standardized 0.5M sodium hydroxide. 2. To titrate a hydrochloric acid solution of “known” concentration
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4 Synthesis of Salicylic Acid Introduction Throughout history‚ botanical extracts have been used as medicines. Approximately 30% of all medicines have a plant origin. This number increases to 60% if you consider medicines that at one time were derived from plants‚ but have been synthesized in the laboratory. Salicylic acid is a white crystalline compound that can be isolated from the bark of birch trees. Since it is a valuable substance that can be isolated from nature‚ it is called a "natural
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Extraction of DNA Molecule of an Onion In an Aqueous Solution By: Introduction DNA(deoxyribonucleic acid) is found in every living organism. It provides the information and instructions to build and regulate cells in organisms. The information it contains is used when organisms are being reproduced. It is made up of two polynucleotide chains known as DNA strands. Within the two chains there are four nucleotide units: adenine‚ thymine‚ cytosine‚ and guanine. Materials and Methods An onion
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Rising Film Laboratory Steam Generator Make & Model HT10XC HT14 HT12 HT30XC HT33 HT11 UOP20XSTM UOP22-11 UOP22-22 UOP10-C 9 Heat Transfer Service Unit H111 S. No. 1 2 3 4 5 6 7 10 11 Equipment Thermal Conductivity of Liquid And Gaseous Unit Free and Forced Convection from Flat‚ Dimmed and Finned Plates H111H H111P 12 Laminar / Viscous Flow Heat Exchanger H971 13 Boiler Control Demonstration Unit P7665+ P7667 PC Manufacture Qty Armfield Armfield Armfield Armfield Armfield Armfield
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