glass rod ‚volumetric flask 100ml ‚dropper CHEMICALS Potassium permanganate (KMnO4)‚ distilled water PROCEDURE A. Preparation of the KMnO4 standard solution 1. KMnO4 was weigh accurately to nearest mg. The reading was recorded. The solid transfer to a 100ml volumetric flask using funnel. 2. The solid was dissolved with distilled water. The flask was shaken after using stopper. Distilled water was added to the mark ‚the dropper was used when reaching the last drop. The flask was stopped using
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Laboratory Report 1 Title : Accurate Measurement of Mass and Volume Part A: The Formula of Hydrated Copper (II) Sulfate Aim: The objective of this experiment is to find out the accurate mass of a solid and to calculate the moles of an unknown. Materials: The materials used in this experiment are Hydrated Copper (II) Sulfate‚ weighing bottle‚ analytical balance‚ laboratory balance‚ casserole‚ spatula‚ and hotplate. Methods: First‚ approximate 1.0g of hydrated copper (II) sulfate was
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HM130 Lab 1 SAFETY‚ EQUIPMENT ‚ AND THE SCIENTIFIC METHOD Name: 1. A student enters their laboratory setting and is getting ready to set up. What preparations should be made? (16 points) The pan student should know the reason for being there and be prepared with all the tools needed for the lab. They should follow all safety measures and make sure they understand the assignment. They should wear all PPE and read all instructions and labels carefully. The student should
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equilibrium constant for the formation of the complex. The reaction for the formation of the dark red FeSCN2+ complex ion is very simple OBJECTIVES. The purpose of this lab is to experimentally determine the equilibrium constant‚ Kc‚ In this laboratory‚ we will determine the Equilibrium Constant for the reaction between the Ferric Ion (Fe3+) and the Thiocyanate Ion (SCN-) which produces Ferric Thiocyanate Ion (Fe(SCN)2+): Fe3+(aq) + SCN-(aq) Fe(SCN)2 (aq) MATERIALS 1. Cuvette 2. Pipet
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air. Because inorganic chemists desire to work with compound that have some component that is air sensitive‚ they have devised a couple of ways to manipulate air-sensitive materials. We will focus our efforts on the use of a Schlenk line in this laboratory. A Schlenk line is a piece of equipment that is designed with the purpose of conducting experimental operations and techniques under an inert air environment. You will be shown how to use a Schlenk line during lab. Experimental Metal carbonyls
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References: http://answers.yahoo.com/question/index?qid=20080911092315AAXRbXU http://answers.yahoo.com/question/index?qid=20090603175731AAvMEzf A Small Scale approach to organic laboratory techniques‚ 3rd edition. Pavia‚ Lampman
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“We cannot know the consequences of suppressing a child’s spontaneity when he is just beginning to be active. We may even suffocate life itself. That humanity which is revealed in all its intellectual splendor during the sweet and tender age of childhood should be respected with a kind of religious veneration. It is like the sun which appears at dawn or a flower just beginning to bloom. Education cannot be effective unless it helps a child to open up himself to life.” -- Maria Montessori
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results in the best yield. Stage 3 – Separating the product from the reaction mixture Figure 2: Dropping funnel Solids can be separated from the reaction mixture by filtration. This is usually best achieved using a Buchner apparatus (funnel and flask) connected to a vacuum pump (Fig. 3). F60CH3 Page 1 Liquids can be separated from the reaction mixture using a separating funnel (if the product is
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Organic Chemistry II Laboratory (ABCT357/ABCT3757) Lab Manual 2014-2015 Lee Hang Wai‚ Alston (alston.lee@polyu.edu.hk) Dr. Lee Cheng Hao‚ Samuel (chenghao.lee@polyu.edu.hk) Organic Chemistry II Laboratory (ABCT357‚ ABCT3757) (Group one) Contact: Alston Lee (alston.lee@polyu.edu.hk) Tuesday 8:30-11:30 ‚ Laboratory: Y1315 Lab supporting staffs: YK Au / Kan Chan/Arnold Demonstrators: Dr. Samuel Lee‚ Alston Lee‚ Fu Wai Chung‚ Guo Shuai‚ Yuen On Ying‚ Sep 16 Tue Acetylation of α-D-glucopyranose (Expt
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condensed vapor. Materials and Equipment: • Aluminum foil square (around 6cm on a side) • 125 mL flask • Barometer • 3 mL of unknown liquid • 200 mL graduated cylinder • 600 mL beaker • Pin • Balance (0.002g) • Bunsen Burner setup • Rubber band • Thermometer • Ceramic center wire gauze Procedure: 1. A 125 mL flask was obtained. The square of aluminum was fashioned over the flask by laying the foil over the mouth and folding the sides down. A pin was then obtained and was used to
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