PRACTICAL 2: Preparation of sodium hexanitrocobaltate (III) Date: 12 March 2014 INTRODUCTION Sodium hexanitrocobaltate (III) is a coordination complex which has the formula Na3[Co(NO2)6]. This compound is yellow in colour. It consists of a central Co3+ ion surrounded by six nitro ligands [1]. This compound is used as a qualitative test for potassium and ammonium ions (so long as certain other cations are not present) [1]. Potassium and ammonium are insoluble in water‚ while sodium is [1]. Hence‚ the
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Stress Reduction Screed Get into a comfortable position...either reclining or lying down...and turn your focus inward...to your breathing. Breathe in deeply....hold it 3 or 4 seconds ... and then exhale slowly. Let your breath be deep and slow. Relax...and continue to relax... deeper and deeper... as you breathe in more...fresh‚ pure oxygen. Pure‚ clear oxygen is the KEY to vibrant vitality... Breathe in very fully... and notice yourself relaxing... more and more ...with each breath. Now... I want
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Cycle Time Reduction - An Inter - organizational Supply Chain Perspective TABLE OF CONTENTS EXECUTIVE SUMMARY … … … … … … … … … … … … … … … … … … … … … … … … … … (Page 3 - 4) ISSUE IDENTIFICATION … … … … … … … … … … … … … … … … … … … … … … … … … … (Page 4) ENVIRONMENTAL & ROOT CAUSE ANALYSIS … … … … … … … … … … … … … … … …. (Page 5 – 8) RECOMMENDATION (S) AND IMPLEMENTATION… … … … … … … … … … … … … … … (Page 9) MONITOR & CONTROL … … … … … … … … … … … … … …
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2. Preparation Of 1 M Na2CO3 Molecular mass of Na2CO3 = 106g Mass of salt in 100 ml of 1M solution = 10.6g Weighing of salt using electrical balance * Mass of Na2CO3 + beaker = 78.64g * Mass of beaker = 68.04g * Mass of Na2CO3 = 10.6g 1. 10.6g of Na2CO3 was weighed in a dry beaker. Small amount of distilled water was added and the salt was dissolved. 2. The contents of the beaker were transferred to
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Size reduction and screening The purpose of this experiment was to determine the affect of vibration rate and time on the size reduction and size separation of particles. The objective was successfully completed and the initial sample of soil was separated by vibration into finer particles with a large amount passing through the smallest diameter screen which was 0.0278 inches producing a final product of fine soil particles which are now easier to transport and store. As can be seen from the
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Title Stress General purpose To inform Specific purpose To inform audience about stress. Central idea There are three matters which are causes of stress‚ effect by stress and how to manage stress Organizational pattern Topical INTRODUCTION A. Open with impact/ Attention gather Stress is poison. The most disastrous effects of stress is committing suicide and this are often occur among students. “ Between 600 and 800 of 15 to 24 years old students killed themselves each year - equivalent
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Aromatherapy and Stress Reduction My patient L.T. is a 35 year old woman who just recently migrated from West Africa. She is a mother of four children‚ ranging from two years of age to 12 years of age‚ and she has just been newly diagnosed with early cervical cancer. Even though this patient has a family history of cervical cancer (her mother died from complications of cervical cancer with metastatic) prior to her diagnosis L.T. was asymptomatic‚ so this came as a shock to both her and her husband
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liquid soaps‚ shampoos and soft soaps because it produces soap of soft consistency and higher solubility in water. Other raw materials: * Builders These are essentially used to build up soaps. Examples of alkali builders are sodium carbonate‚ sodium silicate and sodium sulfate.
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Department of Industrial Management and Logistics Division of Engineering Logistics Planning for Supplier Base Reduction - understanding Supplier Base Reduction’s role in purchasing A case study at Alfa Laval AB Authors Fabian Karlsson Sebastian Eriksson-Ritzén Supervisors Ala Pazirandeh Markus Ekendahl ii Acknowledgements This thesis completed our Master of Science in Mechanical Engineering with specialization in Logistics and Supply Chain Management at the Faculty of Engineering
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Chemical Reactions- Sodium Hydroxide A chemical reaction is a change where two or more substances are changed into a new substance. You can identify a chemical reaction by colour change‚ effervescence (bubbles)‚ when light or heat given off‚ and the change is usually irreversible. There are 6 main types of chemical reactions- combustion (often called burning)‚ synthesis‚ decomposition‚ neutralization‚ single replacement and double replacement. A combustion reaction is a reaction with oxygen‚ and
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