Monday, September 2, 2013

Experiment on the Decomposition of a Carbonate

AIM: To lead kayoed a lab try reveal to analyse a change using heat, also to carry out appropriate campaigns for the defining of products as a closure of this decomposition. DISSCUSION: Carbonates atomic number 18 decomposed by heat into the equivalent oxides and coulomb dioxide. The temperature of decomposition dep terminals upon the business organization of the metal; that is to say, the more sprightly the metal, the more stable is the carbonate. Thus, the carbonates of atomic number 11 and potassium ar stable at the highest temperature of a bunsen burner burner flame, whereas the carbonates of silver and cop are easily decomposed. In this taste copper (ii) carbonate forget be decomposed at a high temperature, forming copper (ii) oxide and carbon dioxide: CuCO3(s) pointer CuO(s) + CO2(g) You will psychometric runnel for the formation of copper (ii) oxide and carbon dioxide. is a professional essay writing service at which you can buy essays on any topics and disciplines! All custom essays are written by professional writers!
Limewater is a unsanded running play for CO2, forming a characteristic milky precipitate: CO2(g) + Ca(OH)2(aq) arrow CaCO3(s) + H2O(l) APPARUTUS: * prolific Pyrex test supply-shaped structures x 3 * medium Pyrex test tubes x 2 * holed fireplug x 1 * stage set glass slant tube x 1 * rubber pipe x 1 * glass subway x 1 * retort bristle x 2 * Bunsen burner x 1 * sentry duty glasses x 1 * Copper(ii) carbonate * Limewater * Copper(ii) oxide * 5ml of dilute H2SO4 METHOD: 1) interchange a miniscule sum of CuCO3 equivalent to a attainment of 1cm into a test tube 2) secure the test tube at an angle of 45 degrees and fit a stoppered preservation tube. Immerse the end of the delivery tube into a test tube half-filled with limewater as shown in the diagram. 3) Heat the test tube containing the CuCO3 strongly for a a few(prenominal) minutes until a warp change in the carbonate and lime water is observed 4) Record... If you compliments to get a fully essay, order it on our website:

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