CHEM 2303: ANALYTICAL CHEMISTRY II LECTURE 1 – INTRODUCTION‚ SAMPLE PREPARATION AND SPECTROPHOTOMETRY WHY STUDY ANALYTICAL CHEMISTRY? To gain a knowledge of the methods and strategies that have been developed to investigate the nature of the chemistry around and within us. To answer the age old questions: What is it? What is it made of? How does it work? We must learn the principles of chemical analysis and the array of strategies that have been developed to analyze chemistry. HOW DO WE ANALYZE
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Decomposition of Sodium Chlorate to Create Oxygen Gas Introduction: There are several types of chemical reactions. Those reactions include synthesis‚ decomposition‚ single replacement‚ and double replacement. In this experiment‚ we will be decomposing sodium chlorate to create oxygen gas. In a decomposition reaction‚ a chemical compound is being separated into elements or simpler compounds. AB → A + B is a simple way of expressing what happens in a decomposition reaction‚ AB break down into A
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Experiment 5 COMMON ION EFFECT MALUBAY‚ Justin Damian PADRILLAN‚ Hazel Rose CD2‚ Group 5 Ms. Sarah Sibug 6 April 2013 ------------------------------------------------- ------------------------------------------------- I. ABSTRACT The common ion effect occurs when a given ion is added to an equilibrium mixture that already contains that ion‚ and the position of equilibrium shifts away from forming more of it. This paper is a follow-up of the experiment which aims to determine the common-ion effect
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CHEM 2213 Lab 25 Title: The Detection of Fats‚ Proteins‚ and Carbohydrate in Foods Purpose: The purpose of this lab is to perform several general tests which help in identifying fats‚ protein‚ and carbohydrates in food. Procedure: Part A- Tests for Detecting Carbohydrates In this part you will conduct the molisch‚ benedict‚ and iodine tests. Purple in the molisch test indicates a positive test. Benedicts test will result in a brick red/brown color for a positive test. For the iodine tests
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Lab 5 The Diffraction Grating Chinua McDonald Objective: To measure the wavelength of light with a diffraction grating. Theory: The two types of diffraction gratings are the transmission and reflection gratings. They are made by ruling on a piece of glass or metal a number of evenly spaced lines with a fine diamond point. Diffraction phenomena can be analyzed in terms of Huygens’ principle‚ according to which every point on the wave front of a wave should be considered as a source
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6753_Klein_00.qxd 5/1/07 5:02 PM Page ii 6753_Klein_00.qxd 5/1/07 5:02 PM Page i 6753_Klein_00.qxd 5/1/07 5:02 PM Page ii 6753_Klein_00.qxd 5/15/07 2:14 PM Page iii ORGANIC CHEMISTRY I AS A SECOND LANGUAGE Second Edition DR. DAVID R. KLEIN Johns Hopkins University JOHN WILEY & SONS‚ INC. 6753_Klein_00.qxd 5/1/07 Marketing Manager Production Manager Production Editor Cover Designer 5:02 PM Page iv Amanda Wygal Pamela
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indicated by a very pale pink color. To calculate the molarity of NaOH‚ the following equation was used MNaOH x VNaOH = MKHP x VKHP therefore the molarity was .125 M. INTRODUCTION This lab experiment covers the preparation of standard solution and the acid/base titration. The first part of the lab is to prepare a standard solution of Potassium hydrogen per. A standard solution is a solution of known concentration‚ in which it is prepared using exacting techniques to make sure that the molarity
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LEDs… Release only ONE color of light Produce very little heat What is an LED? They are semiconductor devices that can convert electrical energy directly into light due to the nature of the bonding that occurs in the semiconductor solid. Type of bonding is directly related to conductivity of solid. Bonding in Elemental Solids Electronegativity – the ability of an atom to attract electrons to itself. Atoms with low e.n. (metals) don’t hold valence electrons tightly valence
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AP Studio Photography Summer Assignments Mrs. C. Reed Principles of Design Photograph a Day for 70 Days Please complete the following photos over the summer. Remember you are creating a design portfolio centered on the principals of design using photography as your media. You need to choose 70 of the 100+ from the list below and shoot a photo a day. Now remember this is more than just a snap shot take your time setting things up and challenging yourself compositionally. Please upload your
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Determination of Cations and Anions through Elimination and Confirmation Tests By: Symantha Resendiz Introduction A topic of great importance to all scientists is the identification of compounds‚ which is relevant in all aspects of their work in some way shape or form. Weather it may be determining what is causing sickness or what is polluting the air‚ it is very prevalent in the science world. In project 2‚ identification of cations and anions was preformed through a series of confirmation
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