CHEMISTRY TOPIC 11 CHEMICAL CALCULATIONS CHEMICAL CALCULATIONS INTRODUCTION The first part of this ‘Chemical Calculations’ topic will help us to work out QUANTITIES involved in a reaction; For example‚ a manufacturer might want to know‚ How much ammonia will I produce from 20 tonnes of nitrogen in the Haber Process? To do these calculations you will need to be familiar with the term Ar (relative atomic mass)‚ Mr‚ Molar mass and Mole. Relative Atomic
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Chemical Bonding Lab Chemical compounds are combinations of atoms held together by chemical bonds. These chemical bonds are of two basic types—ionic and covalent. Ionic bonds result when one or more electrons from one atom or group of atoms is transferred to another atom. Positive and negative ions are created through the transfer. In covalent compounds no electrons are transferred; instead electrons are shared by the bonded atoms. The physical properties of a substance‚ such as melting point
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DASMARIÑAS CITY COLLEGE OF SCIENCE AND COMPUTER STUDIES PHYSICAL SCIENCE DEPARTMENT GENERAL CHEMISTRY I LABORATORY (CHEM210L) S.Y 2013-2014 SCIENTIFIC PAPER CHEMICAL PERIODICITY MARIE JOE A. ALTERADO JUNE 31‚ 2013 CPE32 AUGUST 7‚ 2013 GROUP NO. 1 ENGR. IMELDA C. GALERA ABSTRACT The chemical periodicity was demonstrated by using different samples of Group IA‚ IIA and IVA elements. Each of the samples was placed in a test tubes and the physical state
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Double Blind Peer Reviewed International Research Journal Publisher: Global Journals Inc. (USA) Online ISSN: 2249-4626 & Print ISSN: 0975-5896 Chemical and Physicochemical Properties of Moringa Flours and Oil By Abiodun O.A.‚ Adegbite J.A. & Omolola‚ A.O. Osun State Polytechnic‚ Nigeria Abstract - This work evaluates the chemical and physic-chemical properties of moringa seed flour and oil. The moringa seed were divided into two portions. The first portion was milled into flout while the
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Chemical Proportionality (Carbonate and Hydrochloric Acid) Introduction: The purpose of this experiment is what happens when a solid substance‚ a metal carbonate is added slowly to a solution of an acid. We are finding methods of determining acid concentration. For us to balance certain equations‚ we will use a stoichiometry. For this experiment‚ we will need to set up the ratio and finding the concentration of HCI. Procedure: • Grab 4 different beakers. • Add a small amount of sodium carbonate
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proceed to discuss the characteristics and services provided by her chosen chemical dependency program. It is her belief that a substance abuser and/or addict is more likely to succeed at living a life free of alcohol and drugs when they continually attend a 12-step program‚ follow the steps‚ have a sponsor‚ a support group and educate themselves on how to live life without turning to alcohol or drugs. Of the several chemical dependency programs available‚ she chose to conduct a telephone interview
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In the 19th century few could afford the luxury of moving into a new country for economic pull factors. John uses different rhetorical devices of tone‚ diction‚ and atmosphere to convince his wife that the United States is there salvation for a better life. In the letter the author uses a persuasive tone to convince his wife to be by his side. John Downe says‚ “I know that you will like America.” By mentioning what she will like in a future reference form makes the author’s tone sound compelling
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“Reality” “...the end‚ nothe BEGINNING.” Perfectly stated byRhonda Patrice Johnson and devoured by a captivated audience‚ Push delivers the reader to a newbeginning in a realistic world most seek to deny. Written by the anonymousauthor‚ Sapphire is bent on delivering realism in its thickest and most pureform‚ Push catapults the reader intoa world wrought with poverty‚ horrific abuse‚ and surreal sadness permeated bya stench of undying racism. In order to achieve this intense sense of realismand
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Chemical Change Lab Name Data Table 1: |Chemicals |Well # |Reaction on White Paper |Reaction on Dark Paper | |NaHCO3 + HCl |A6 |Remains clear. |Remains clear. | |HCl + Blue Dye |B6 |Orange color. |Cannot distinguish color
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Abstract Chemical equilibrium occurs when a reversible reaction is happening forward and backward‚ at the same time by the same amount‚ is equal. Two procedures were made. First is the Effect of Concentration on Equilibrium. The solution became orange when it was diluted with ammonium hydroxide and the solution became yellow when water was added to the solution. In the second‚ Effect of Temperature on Equilibrium‚ the solution turned into a light brown gas when it was placed in the refrigerator
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