Environmental pollution in Dhaka city INTRODUCTION: Pollution is an undesirable change in the physical‚ chemical or biological characteristics of air‚ water‚ soil or food that can adversely affect the health‚ survival or activities of human or other living organisms. The effects of water pollution are far-reaching and affect not only the environment‚ but human beings and animals as well. The pollution in Dhaka has reached alarming levels‚ threatening public health‚ ecosystems and economic
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equation. (a) adding excess sodium sulphite solution to iodine solution (b) adding aqueous chlorine to potassium bromide solution (c) adding excess potassium iodide solution to acidified potassium permanganate solution 1 (d) adding excess iron(II) sulphate solution to acidified potassium dichromate solution (e) adding concentrated nitric acid to magnesium ribbons (f) (g) (h) (i) (j) (k) (l) (m) (n) 5. adding dilute nitric acid to zinc granules adding concentrated sulphuric acid to solid sodium bromide
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Experiment 3 A Cycle of Copper Reactions Chemistry Department UCC 1st Year Practicals Introduction n n n n n Copper is one of the most important metals. Copper is reddish with a bright metallic lustre It is malleable‚ ductile‚ and a good conductor of heat and electricity (second only to silver in electrical conductivity) Its alloys‚ brass and bronze‚ are very important Has various oxidation states: 0 in elemental copper‚ +1‚ and +2 which is observable in corroded
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ACKNOWLEDGEMENT I would like to express my sincere gratitude to my chemistry mentor abcd ‚ for his vital support‚ guidance and encouragement -without which this project would not have come forth. fermentation of the following fruit or vegetable juices. i. Apple juice ii. Carrot juice (1) INTRODUCTION to the topic Fermentation is the slow decomposition of complex organic compound into simpler compounds by the action of enzymes. Enzymes
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Baby boy A.‚ preterm‚ 36 weeks by Ballards score was delivered by Ceasarian section at a private hospital to a 32 year old multigravid with Apgar score 8 and 9 at one and five minutes‚ respectively. Birth weight was 2.3kg. Birth length 45 cm. Mother‚ on the 3rd trimester‚ had urinary tract infection treated with Amoxycillin 500mg/cap‚ 1 capsule TID for 1 week. Thereafter she was admitted in a private hospital due to preterm labor where tocolysis was done. Two days prior to delivery‚ the mother
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Project Report - Determination of the Dosage of Bleaching Powder Required for Sterilization of Different Samples of Water CONTENTS 1. INTRODUCTION 2. GENERAL METHODS USED 3. THEORY 4. REQUIREMENTS 5. PROCEDURE 6. OBSERVATION TABLES 7. CALCULATIONS 8. RESULT 9. CONCLUSION INTRODUCTION Water is the major constituent of all living beings. Water necessary to sustain all types of life. The water used for drinking purpose by human beings should full the following
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Carbon | C | 4 | Calcium | Ca | 2 | Iron | Fe | 2 | Aluminium | Al | 3 | Sodium | Na | 1 | Potassium | K | 1 | Magnesium | Mg | 2 | Zinc | Zn | 2 | Copper | Cu | 2 | Silver | Ag | 1 | Lead | Pb | 2 | Chloride | Cl | -1 | Sulphate | SO4 | -2 | Hydroxide | OH | -1 | Carbonate | CO3 | -2 | Nitrate | NO3 | -2 | Phosphate | PO4 | -3 | Hydrogen Carbonate | HCO3 | -1 | Acids and Bases in the Laboratory Back to Top Some common acids that are found in
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AJIT KUMAR H.no:633‚ Vikas Nagar Basai‚ Gurgaon‚ Haryana pin 122001 Cell. No: 07838990086 Email : sinhaajitkumar@rediffmail.com Objective: To work hard in a creative environment to explore my self & to learn in every step with a coordinating team. Experience:- Organization Name To From Total Exp. Designation Nature` of ind. Elixir Pharmaceuticals ltd. Aug. 92 Sept 95 03 years Senior operator Pharmaceuticals ind Large vol. parenteral Dee pharma ltd. Decem
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INTRODUCTION The Ejisu-Juaben Municipal Assembly is one of the twenty-seven administrative districts in the Ashanti region. The municipality is located in the central part of the region and shares boundaries with Kumasi metropolis and Kwabre District to the west‚ Sekyere East and Ashanti Akim North Districts to the east and Bosomtwe Kwanwoma and Asante Akim South Districts to the South. The Municipality covers a total land area of about 6374km2 forming about 2.6% of the entire area
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Confirmatory Tests for Cations & Anions prepared by alex teoh / Update: 29 Dec 2004-2205 h / 1st pub: 7 Sep 2001 @ CHIJ-St Joseph’s Convent Test for CATions * All cations must be present in aqueous states before tests can be conducted.. CATion ammonium zinc Reaction with aqueous Sodium Hydroxide NO ppt. Ammonia gas produced on warming. White ppt. [y] Soluble in excess aq. NaOH to form a colorless solution. [z] Zn2+ + 2OH- Zn(OH)2 (white ppt) Zn(OH)2 + 2OH- [Zn(OH)4]2- (aq) White ppt
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