Titration report Aim: The aim of the experiment was to see how much acid it took to neutralise the solution and make it turn clear from being pink. We used a titration as it allowed us to see exactly how much acid was needed to turn the solution clear. We did it four times so that we could have a preliminary run so we knew where abuts it was going to change so that our results were more accurate and reliable. Vocational context: Titrations would be used in many different types of industries for
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NAME: Hussaini Hadassah PROGRAMME: International relations MATRIC NO: 12AH013426 COURE: Nigerian system of public administration COURSE CODE: PAD 211 LECTURER: Mrs. Excellence DATE: 27th August‚ 2013. QUESTION What are the functions of the various administrators of the hausa-fulani pre colonial administration? Prior to European occupation and balkanization of Africa‚ most African tribes had well organized empires e.g. Yoruba‚ Benin‚ Hausa‚ Fulani etc. the pre colonial administration had institutions
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Dobereiner discovered that properties of elements like Fe‚ Co and Ni were similar .And from there he made his very own law of triads which contains groups of three elements based on their atomic masses. Example; Alkali Formers Salt Formers Li 7 Cl 35.5 Na 23 Br 80
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inorganic compound with the chemical formula NaOH. It is a white solid and highly caustic metallic base and alkali salt which is available in pellets‚ flakes‚ granules‚ and as prepared solutions at a number of different concentrations. Sodium hydroxide forms an approximately 50% (by weight) saturated solution with water. Sodium hydroxide is soluble in water‚ ethanol and methanol. This alkali is deliquescent and readily absorbs moisture and carbon dioxide in air. Sodium hydroxide is used in many industries
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Industry Overview The US soap and detergent manufacturing industry includes about 650 companies with combined annual revenue of more than $30 billion. Major companies in the consumer sector include divisions of Procter & Gamble (P&G); Colgate-Palmolive; and Dial. Major companies in the commercial sector include divisions of Ecolab and US Chemical. The industry is highly concentrated: the top 50 companies generate about 90 percent of revenue. Competitive Landscape Population growth‚ particularly
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acid * Platinum wire * Bunsen burner * 2 test tubes * Universal pH paper * Water * 4 Droppers * Dilute sodium hydroxide * Ammonium hydroxide (ammonium solution) * Copper turnings * Ammonium salt (NH4Cl) * Alkali (Ca[OH]2) METHOD: 1.) Moisten a small amount of the solid with concentrated hydrochloric acid and dip a piece of platinum wire into the mixture and heat strongly in a Bunsen’s flame. 2.) Observe and record the color of the flame produced
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Module One: Grade Nine Topics Physical Change: This is a usually reversible change in which the form of matter is altered‚ but is not chemically changed to another substance. Melting an ice cube is an example of a physical change. The ice cube changes states: from a solid to a liquid (water). You can physically see this change. No new substance is formed: the matter in the liquid is the same as it was in the ice cube. It is reversible: you can freeze the liquid to turn it back to ice.
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Chemistry IGCSE Paper 6 revision guide You can change the temperature and concentration used (not both at the same time though) You need to keep the diameter of the conical flask the same‚ if it is thinner then the cross will disappear sooner‚ the cross also has to be the same‚ volumes too (This set up is mostly if you want to test the gases‚ otherwise you can use the standard set up) The limestone cycle: 1. Burn the limestone
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An Introduction to Qualitative Analysis Purpose: Tests the ions of Mg2+‚ Ca2+‚ Sr2+‚ and Ba2+‚ and identify them separately. By using these observations‚ identify the unknown ion. Then tests the ions of SO42-‚ CO32-‚ Cl-‚ and I-‚identify them separately‚ and use the observation to identify the unknown. Procedure Part I - Qualitative Analysis of Group 2 Elements Mix 0.02M K2CrO4 with each Mg(NO3)2‚ Ca(NO3)2‚ Sr(NO3)2 and Ba(NO3)2 together. Secondly‚ mix 0.1M (NH4)2C2O4 instead
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"Food establishment" means an operation where food is processed‚ packed‚ canned‚ preserved‚ or frozen . Health Regulations - Food Establishments Food handlers Every person directly handling unwrapped or unprotected food shall keep clean and wear clean‚ light-colored‚ washable clothing while on duty. Adequate dressing space shall be provided apart from any room in which food may be opened to contamination. Toilet rooms are not considered adequate quarters to be used as dressing rooms. Such
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