ENERGY BALANCE Desulphurizer Here Sulphur in Naphtha is made to react with Hydrogen in presence of catalysts to give Hydrogen Sulphide. This reaction takes place at a temperature of 623 K H2 + S Hydrogen and Naphtha are assumed to be stored at 303 K Specific Heat capacity of naphtha is assumed to be 3.5235 kcal/kmol Specific Heat capacity of Hydrogen =(6.62+0.00081T) kcal/kmol K ∆H = ∑ ni ∫ C pi dT = 6.015915 x10 6 kcal hr i Hence heat required to raise their temperature from 303 K to
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Amines and Amides Amine - an ammonia molecule (NH3) in which one or more H atoms are substituted by an alkyl or aromatic group. Amide - an organic compound with a carbonyl functional group (C=O) bonded to a nitrogen atom. Amines are the smaller and simpler products of the decomposition of larger and more complex organic compounds like proteins. They often have foul odours‚ as do many nitrogen compounds‚ such as the smell of rotting fish and decomposing animal tissue and are produced by
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SYLLABUS Cambridge O Level Chemistry 5070 For examination in June and November 2014 University of Cambridge International Examinations retains the copyright on all its publications. Registered Centres are permitted to copy material from this booklet for their own internal use. However‚ we cannot give permission to Centres to photocopy any material that is acknowledged to a third party even for internal use within a Centre. © University of Cambridge International Examinations 2011 Contents
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2 Di-Ammonium Phosphate (DAP). 3 Calcium Ammonium Nitrate (CAN). 4 Ammonium Sulphates (AS) 5 Single Super Phosphate (SSP) 6 Nitro phosphate (NP) 7 Sulphate of Potash 8 Zinc Sulphate 1. Urea: More than 90% of the world’s production is destined for use as a nitrogen-release fertilizer. Urea has the highest nitrogen content of all solid nitrogenous fertilizers in common use (46.7%). 2. Di-Ammonium Phosphate (DAP): It contains 46% P2O5 and 18% N. it is water soluble. It is
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UTAR FHSC1134 Inorganic Chemistry Trimester 3 Experiment 1 ________________________________________________________________________ Title: Investigating the Properties of Period 3 Oxides Aim: To examine the oxides of Period 3 elements and describe their structure and bonding. Introduction: Generally‚ there are oxides of metals and non-metals. Metals burn in oxygen to form basic oxides while non-metals form acidic oxides. Structurally‚ they are covalent or ionic compounds. You are to
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particles are in constant motion. 4. There are forces that act between the particles. METHODOLOGY Materials and Apparatus CuSO4 (size of a rice grain) Phenolphthalein indicator Ammonia solution (1 M NH3) Iodine crystals (I2) Graduated cylinder Procedure: Part 1 Diffusivity 1. Place a small amount of iodine in a beaker. Cover the beaker with a watch glass. Place a wet tissue paper on top of the watch glass
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first of reaction of sodium hydroxide with hydrochloric acid and sodium hydroxide with ammonium chloride. Using Hess’ Law and the results for the enthalpy change of the first two reactions should give the enthalpy change of the third reaction of ammonia with hydrochloric acid. Procedure: Part 1: Construct a calorimeter of two nested stereophony cups where the cover has a hole to fir a thermometer. Measure 50ml distilled water at room temperature into the calorimeter. Measure the temperature
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Ashley Gonzales Dana Ronquillo Chem 12/E January 9‚ 2015 Experiment 20A - Introduction to Acids and Bases Purpose: 1. to become familiar with a variety of typical laboratory test for acids and bases 2. to develop operational definitions of acids and bases 3. to develop conceptual definitions of acids and bases 4. to test a variety of household products and classify them as acids or bases Materials: Refer to “Heath Chemistry- Laboratory Experiments” p.230-231 Procedure: Refer to “Heath Chemistry-
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the WWI‚ he put all his effort to help Germany his own country during the time‚ invented the way of creating Ammonia‚ and worn the Nobel prize in chemistry in 1918. Fritz was born in December 9‚ 1868 in Breslau. By using a high pressure and catalyst‚ he reacted nitrogen gas and hydrogen gas directly together to create ammonia‚ and named the process “Harbor Brosh”. The nitric acid in ammonia can be used to manufacture agriculture fertilizer and explosives. This supports German in a very important way
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first two cylinders‚ most of my analysis and conclusion would have to be based on the data from bio-cylinder 3 and what has been discussed during the lectures. Some of the possible reasons for the “extinction” in cylinder 1 were the accumulation of ammonia from the fish urine and a lack of oxygen due to the algae growth blocking the photosynthesis of the original elodea. This of course would reduce the amount of oxygen within the cylinder and cause the fish to die from the lack thereof. However‚ upon
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