Colours for living and learning The Universe is a magnetic field of positive and negative charges‚ constantly vibrating and producing electro-magnetic waves. Each of these has a different wavelength and speed of vibration; together they form the electro-magnetic sphere. White light when seen through a prism or water vapour splits into the colours of the spectrum. Of all the electro-magnetic sphere it alone can be seen. Radio waves‚ infra-red waves‚ ultra-violet waves‚ x-rays and gamma waves can
Premium Color Green Color wheel
Colours Imagine a world without colours. If you see only shades of grey around you‚ wouldn’t you find it dull and boring? Would it make you feel gloomy and that everything is ugly and uninteresting? I am quite certain you would say yes to all these questions. We humans love colours. We love colours because colours make our world beautiful. All things on earth have their own colours and hues. Even things of the same type may have many shades and colours. Flowers‚ for example‚ come
Premium Color Green Red
Introduction: The purpose of this lab was to separate and purify a compound. This was achieved using techniques that allowed the extraction of the acid‚ the isolation of the neutral compound and the melting point classification of the neutral compound to test the purity of the sample. Chemical Reactions: HA + OH- A- + H2O R-COOH + OH- R-COO- + H2O Organic Acid Insoluble in H2O Conjugate base Soluble in H2O Procedure: A 0.170g sample consisting of a mixture of 0.110g
Premium Chemistry Sodium hydroxide Acetic acid
Global Oil Market Before and After Oil Extraction in Saudi Arabia KHALED HAMED AL SHEHRI Contents Contents 2 INTRODUCTION 3 I. BACKGROUND 3 A.Exploring the Oil in KSA 4 B.Middle East Economy 5 II. GLOBAL MARKET 6 A.Global Market before and after Saudi Oil Exploration 6 B.Current Position of Global Oil Market 6 C.Worldwide Oil Consumption 7 1. Comparison between OECD and Non-OECD Countries 7 III SAUDI ARABIA ROLE IN OIL AND GAS INDUSTRY 9 A.OPEC 9 B.Saudi Arabia role in OPEC
Premium Saudi Arabia Petroleum United Arab Emirates
Steam distillation of cloves produced 0.53g of an oil which contained in its IR spectrum the functional groups O-H (at 3520 cm-1)‚ sp2 C-H (3080 – 3000 cm-1)‚ aliphatic C-H (2980 – 2940 cm-1)‚ and both alkene C=C (at 1640 cm-1) and aromatic C=C (at 1514 cm-1). The IR spectrum is attached to this report. These data are consistent with the structure of eugenol‚ shown in Figure 2 below: In addition‚ the IR of the product from the steam distillation of cloves closely corresponds with that of an
Premium Distillation Solvent Water
the Extraction lab is to separate and purify benzoic acid‚ 2-naphthol‚ and naphthalene. These organic solids are purified by partitioning the solid in 2 immiscible solvents‚ diethyl ether and sodium bicarbonate or sodium hydroxide. II. Significance a. The significance of the Extraction lab is to purify Acetanilide benzoic acid‚ 2-naphthol‚ and naphthalene by determining the partition coefficient. This value is determined by dividing the solubility of the given solute in the extraction solvent
Premium Solvent Solubility Ethanol
Extraction of Caffeine from Tea leaves Casinabe‚ Antonio Karlo‚*Catahay‚ Jesus Alfonso‚ Cerdena‚ O’neil‚ Cordova‚ Robelle Department of Biological Sciences‚ College of Science University of Santo Tomas‚ España Street‚ Manila 108 Group 4 2MB Date Submitted: December 13‚ 2012 ------------------------------------------------- ABSTRACT: The purpose of this experiment is to extract the amount of caffeine present in tea bags. In this experiment‚ isolation‚ characterization and purification
Premium Caffeine Chemistry Tea
Importance of Colour Published on May 18‚ 2007 at 4:59 PM Colour is an important part of our everyday lives. We judge how healthy we‚ our crops and our food are‚ with the help of colour. Our choice of decoration‚ furnishing and clothing is strongly influenced by colour. Colour is involved in almost every aspect of our lives. People and colour perception The human eye is the means that we use to detect colour and it is very sensitive at detecting colour and differences in colour. However
Premium Eye Measurement Color
INTRODUCTION TO HAIR COLOUR With this unit we will be covering four ways to colour hair using: Semi permanent Quasi/Demi permanent Permanent Lighteners/Bleach Performance will take place as: Regrowth colour Full head colour Woven highlights/lowlights When we are looking at colouring hair we have several things to take into consideration: - History of previous allergic reactions to colour products -Skin disorders -Incompatible products -Evident of hair damage We will have
Premium Color Hair Hair color
and Identification of Eugenol: The Fragrant Component of Cloves *Adri‚ Kiersten Jayne R.‚ Aguinaldo‚ Samuel Jr. Group 2 Department of Chemistry‚ College of Science University of Santo Tomas‚ España‚ Manila 1008 Abstract. In this experiment‚ the primary objective was to isolate eugenol from cloves. An amount of 30 grams of dried cloves and 300 mL of water was distilled over a flame for over 2 hours. The distillate underwent extraction with dichloromethane‚ water and sodium hydroxide. Concentrated
Premium Oxygen Water Chemistry