Principles of Distillation What is distillation? Simply‚ distillation is the process in which a liquid is vaporized (turned to steam)‚ recondensed (turned back into a liquid) and collected in a container. Nature uses a form of distillation to turn salt water (seawater) into fresh water (rain). Why do you use distillation to recycle waste solvents? Solvent-based waste contains volatile material (solvents) and non-volatile material (contaminants like paint‚ ink‚ grease‚ fiberglass‚ etc.). Many of the
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Name: ______________________________________________ CHEM 102 – SPRING 2014 Study Guide: Exam 1 The following questions should assist you in your preparation for Exam 1‚ but does not include everything that you are responsible for knowing for Exam 1. Use your textbook‚ class notes‚ and past homework assignments in addition to this guide to prepare for Exam 1. 1. What are the differences between solids‚ liquids and gases with respect to molecular velocity‚ density‚ shape and volume?
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Introduction: A balanced chemical equation has reactants and product that has to represent a formulae. The amount of each element‚ number needs to be the same in either side of the equation. (E.g.‚ HCl(aq)+NaHCO3(s) reacts to produce NaCl(aq)+H2O(I)+CO2(g)‚ this is the equation given for this lab). This help us view the study of Law of Conservation of Mass‚ when either side of equation is equally balanced. The calculation for formula mass helps determine if you need to convert grams to a particular
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EXTRACTION OF BIOACTIVE COMPONENTS FROM PANDAN (Pandanus amaryllifolius) STEM EXTRACT Statement of the Problem The study aims to find out the presence of bioactive components in stem extract of Pandan (Pandanus amaryllifolius) and sought to find answers for the preceding questions: 1. Do Pandan (Padanus amaryllifolius) stem extract have bioactive components? 2. What is the possible use of the bioactive components that are present in the Pandan (Pandanus amaryllifolius) stem extract? Statement
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Ch.E. 421 Problem Set (Batch Drying) 4 Ch.E.a/b 13-15 November 2012 The solution of the problems are to be submitted as a team report at the end of the period. Please include honor code and the individual contribution of each team member. 1. A wet solid is dried from 36% to 8% moisture in 5 hours under constant drying conditions. The critical moisture is 14% and the equilibrium moisture is 4%. Calculate the time needed: a) To dry from 8 to 5.5% moisture b) To dry from 30% to 15% moisture c)
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Chemistry Controlled Assessment Research – Descaling coffee machines Q1) The advantages and disadvantages of these commonly used de-scalers Ethanoic Acid (Acetic Acid) Citric Acid Sulfamic Acid Ethanoic Acid Advantages: Ethanoic acid is non-toxic and is a weak acid [4]‚ meaning it will not do any damage to most surfaces as it does not corrode or bind to other metals‚ therefore can be easily removed through washing or rinsing it [2]. Disadvantages: Ethanoic Acid is the slowest de-scaler of
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In the experiment of distillation we separated two miscible liquids. The purpose of distillation is to identify and purify compounds. We began our experiment by setting up an apparatus for macroscale simple distillation. We used 60 ml of Cyclohexane/ Toluene. We began with the temperature at 50 degrees Celsius. Unfortunately‚ we reached an error when the compounds evaporated too rapidly. The compounds evaporated so quickly that we lost data from 2 ml to 13 ml. The heat was lowered and as a result
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Purpose: The purpose of the lab was to investigate and demonstrate hydrogen bonding and London dispersion bonding in water and rubbing alcohol. Hypothesis: I believe water will have the greater surface tension because rubbing alcohol’s density is lower than water’s. Materials: * Water * Isopropyl alcohol (rubbing alcohol) * Pennies * Paper clips * Flasks * Cups or jars * Wax paper * Eyedropper Procedures: Part 1: Surface tension and vortex: * Fill
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Title: Preparation and purification ethyl alcohol Purpose: The purpose of this experiment is to form a yeast mixture with water‚ organic compound like sucrose‚ Ba (OH) 2 for fermentation process‚ and use simple distillation method to purification from the fermentation mixture. Abstract and Theory: There are many techniques that are used to purify liquid. The one that is going to use for this lab is simple distillation. It is a process of which separating a mixture based on the tendency of the
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What is desalination? Desalination is the separation process of removing or reducing excess salts and other mineral from substances. 1 The process of desalination may be used on different substances however this paper will focus on the desalination of water. The desalination of water is very important to human and animal life. For centuries humans have used the process of desalination to obtain water safe for consumption.Various methods of desalination have been produced however only some of those
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