Ash Experiment # 5: Volumetric Analysis of a Carbonate – Bicarbonate Mixture Submitted by: Eugenio December 2012 Department of Chemical Engineering University of Santo Tomas España‚ Manila Abstract Soda ash is the common name for sodium carbonate (NaCO3)‚ a chemical salt derived from carbonic acid. It is frequently used in manufacturing‚ industry‚ and in domestic chores. Glass production is one of the primary industrial uses for sodium carbonate. It is also used as an additive for detergents
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Nomenclature for Ionic Compounds Ionic compounds consist of cations (positive ions) and anions (negative ions). The nomenclature‚ or naming‚ of ionic compounds is based on the names of the component ions. Here are the principal naming conventions for ionic compounds‚ along with examples to show how they are used: Roman NumeralsA Roman numeral in parentheses‚ followed by the name of the element‚ is used for elements that can form more than one positive ion. This is usually seen with metals. You
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to be used to identify an unknown sample. Sulphuric acid was to be added to a carbonate solution and an effervescent reaction would confirm the presence of carbonate anions. Another sample of carbonate solution was to be reacted with hydrochloric acid and the gaseous product was to be reacted with a suspended drop of barium carbonate. The presence of clouding in the droplet would also confirm the presence of carbonate anions. Silver nitrate was to be added to chloride solution and the
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are found on page 162 in the textbook Sciencepower 9 Part 7: Test tube; Test tube rack; Dilute hydrochloric acid; Magnesium ribbon Part 8: 3 Test tubes; Test tube rack; 2 Spatulas; 2 Stoppers; De-ionized water; ………………Ammonium chloride; Calcium Chloride Procedure: Part 1: i) Observe and record the physical properties of each starting substance …………………..before mixing the substances together. …………… ii) Pour 2-3mL of potassium iodide solution into a clean dry test tube. ………………iii)
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acid is neutralized by the antacid. Different antacids use different metal hydroxides‚ such as Al(OH)3 or Mg(OH)2. The general formula for this reaction is: M(OH)y + Y HCl [pic] Y H2O + M+y + Y Cl- Additionally‚ some brands of antacids use calcium carbonate as a neutralizing reagent. CaCO3 + 2 HCl (aq) [pic] H2CO3 (aq) + Ca2+ (aq) + 2 Cl-(aq) The carbonic acid formed in this reaction may undergo further reaction: H2CO3 (aq) [pic] H2O (l) + CO2 (g) Procedure Outline This experiment will involve
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Section A (Answer ALL questions in this Section.) 1. Rubidium (Rb) and potassium belong to the same group in the Periodic Table. The relative atomic mass of rubidium is larger than that of potassium. (a) Explain whether rubidium is more reactive than potassium. (b) Write a chemical equation for the reaction between rubidium and water. (State symbols should be given.) (c) Suggest how rubidium can be stored safely in the laboratory. (d) Suggest ONE safety precaution for handling
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neutralising soil; it is a sedimentary rock that is commonly found in quarries. It is a compound consisting of calcium‚ carbon and oxygen called calcium carbonate (CaCO3). As it is a solid it would be very hard to neutralise soil with it so it has to be broken down and made into a liquid form called calcium hydroxide (CaOH2) made up of calcium‚ carbon‚ oxygen and hydrogen. This calcium hydroxide can then be sprayed on the fields to neutralise the soil. Stings When we get stings e.g. wasp‚ bee
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The cocoa showed the shape of the fingerprint best but the powder went streaky over the lines of the fingerprint when brushed. The talcum powder showed up second best but was also very streaky due to the brush. Calcium carbonate was very hard to see but showed the lines of the fingerprint better than the other two powders tested. The main problem that caused this experiment to be unsuccessful was that the brush we were using was too hard and bristly‚ causing the powders
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third reaction‚ ammonium carbonate was heated to decompose into two gases‚ due to the absence of anything solid or liquid following the reaction. A wood splint was used to determine that carbon dioxide was present‚ since the lit splint was extinguished when put in the test tube. Therefore‚ the other product is ammonium oxide. The fourth reaction occurred between calcium carbonate and hydrochloric acid. When mixed‚ the two reactants produced a clear aqueous solution‚ calcium chloride‚ water‚ and a gas
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report. HARPREET KAUR B.Com - I Roll. No. 313 Project Report On “Investigation on the foaming capacity of different samples of washing soaps and the effect of addition of sodium carbonate on them” Aim of the Project 1. Compare the foaming capacity of different washing soap. 2. The effect of addition of sodium carbonate in them. Experiment - I Compare the foaming capacities of different samples of soap. Apparatus Material 1. Five 100ml conical Flask 1. Five different Soap
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