Zelishovsky Date Submitted: 4/26/2012 Date Performed: 4/25/2012 Lab Section: Chem-180-DL1 Course Instructor: Dr. Cynthia Spencer Purpose The purpose of this experiment is to use stoichiometry to predict how much of a product will be made in a precipitation
Premium Stoichiometry Yield Water
The purpose of the making alum from aluminum lab was to create alum from a series of chemical reactions involving aluminum. Small pieces of an aluminum can were cut and measured before being taken through a series of chemical reactions. This process involved filtering out waste product that was no longer needed in the reaction by using Whatman #4 filter paper and an aspirator. The first reaction that took place was placing aluminum pieces into the strong base NaOH and then heating it. This reaction
Premium Chemistry Chemical reaction Water
Fig. (3.12): Cylinders after being removed from the molds and curing Fig. (3.13): Cubes after being removed from the molds and curing Fig. (3.14): Prisms after being removed from the molds and curing 3.5.7. Preparation of specimen’s surface: The specimen’s surface is important since it has variable influences on mechanical properties. So the specimens were prepared to have a smooth and parallel bearing surface. These specimens were perpendicular to the axial load during all the tests‚ as
Premium Chemistry Water Solvent
Name: Mugabe Rodrigue Class: Grade 11B Subject: Biology Topic: DNA Extraction From Onion Date: 20/1/2014 Introduction: DNA‚ or deoxyribonucleic acid‚ is the hereditary material in organisms. Nearly every cell in an organism has the same DNA. Most DNA is located in the cell nucleus.The information in DNA is stored as a code made up of four chemical bases: adenine (A)‚ guanine (G)‚ cytosine (C)‚ and thymine (T). The order‚ or sequence‚ of these bases determines the information available for
Free DNA Cell Organelle
The Physical Properties of Eleven Chemical Compounds Problem: Discover whether various chemical compounds are molecular or ionic and if they are acidic or basic. Hypothesis: If the compound is ionic‚ then it will be soluble because the energy given off water molecules compensates for the energy needed to break ionic bonds‚ also‚ if the compound is Ionic‚ it will be an electrolyte‚ because they mostly break up into ions when in water. If the compound is molecular‚ then it will be soluble‚ it cannot
Premium Water Chemistry Acid
EXPERIMENT REPORT (PREPARATION OF CdS) Experiment Purposes 1. To master the proper operations as well as the suitable situations of atmospheric pressure filtration‚ vacuum filtration‚ centrifugal separation & precipitation washing 2. To understand the relation between precipitation state % precipitating conditions 3. To learn the way to examine whether reactants are fully precipitated 4. To learn the principals of powder material synthesizing through room temperature solid phase method
Free Solubility Solid Liquid
Result In the experiment‚ Silver nanoparticles is used as it has low absorption losses‚ compared to other metals. The formation of silver nanoparticles is done by depositing of various mass thickness of uniform layer of silver at the rate approximately 2 Å/ s at 1x10−5 Torr. After this‚ the sample were annealed in nitrogen for 50 min at 200 °C. The particle coalesce together to formed island due to surface tension. In this experiment‚ four samples were used‚ a) 1.25 µm SOI Test Cells – The thickness
Premium Chemistry Oxygen Solubility
For the seventh experiment we will be performing different type of test to see how different chemical react with each other. The first experiment will be a demonstration the professor will give to the class. the first experiment you will be performing will include a test tube you will add a couple drops of dilute hydrochloric. you will add this to five little pieces of zinc metal. In next experiment you will performed you will put 2 ml of 3% hydrogen peroxide solution in a test tube .you will also
Premium Chemistry Oxygen Solubility
In order to carry out a detailed stability study of OXP and CYPZ in combination‚ it is essential to have a single stability-indicating assay method which can separate both drugs along with all of their degradation products from each other. Therefore‚ a RP-HPLC method was developed and optimized. Optimization of the chromatographic conditions In this study‚ the different experimental parameters were carefully studied and optimized in order to improve the performance and system suitability parameters
Premium Pharmacology Clinical trial Medicine
A simple‚ precise‚ accurate and rapid High-Performance Thin Layer Chromatographic method has been developed and validated for the simultaneous estimation of of ellagic acid‚ chlorogenic acid‚ gallic acid and quercetin in the leaf extract of Terminalia tomentosa and its Formulation. The stationary phase used was precoated silica gel 60F254.The mobile phase used was a mixture of Butyl acetate: Formic Acid: Distilled Water 14:5:5 (v/v). The detection of spots were carried out at 254 nm. This HPTLC method
Premium Chemistry Solvent Acetic acid