Chemistry Practical Assignment - Copper carbonate Lab Report

Chemistry Practical Assignment - Copper blowate - science lab Report ExampleTake the given CuCO3 and weigh around 0.2 gm to the nearest to 0.01 gm of it in a test tube.Carefully tight the cork fitted with a delivery tube on the spill of the test tube and use sealant to close the leakage if any in the tube. Filled a water tray and fill the receive cylinder with water, cover it and gently invert the graduated cylinder and withdraw it down so that its mouth of it is just beneath the water level in the filled tray. pick up that there is no air bubbles at the time of putting graduated cylinder and it is fixed with the aid of clamp. Put the delivery tube inside the mouth of the cylinder so that the air is passed to the inverted graduated cylinder. The experimental setup should look like as shown in figure-1 (Decomposition of hair carbonate, n.d.) and by putting the sealant material minimize the leakage from the corners and through the cork.Now heat the copper carbonate gently with a burner (Thermal decomposition, 2007). The natural gas so formed is passed to the inverted graduated cylinder (Decomposition of copper carbonate a, n.d.). As in brief the formation of gas bubbles stops, immediately hold in out the burner and keep the graduated cylinder perpendicular and take the meniscus reading and find out the volume of water displaced by the gas. Record the temperature of water and barometric pressure in the laboratory.Repeat the experiment at least thrice and record the angle of copper carbonate taken for all the experiments and corresponding gas volumes. Safety and Pre safeguards An irresponsible act can be our own safety and health in the laboratory (On carrying out experiment in the laboratory, n.d.) and therefore before conducting the experiment wear safety goggles and lab apron (Safety and Laboratory Rules, 1999). Avoid ingesting chemicals and use caution around open flames (Decomposition of copper carbonate, n.d.)Calculations and Discussions For ev aluating both the equations, the mole apprehension is used (mole concept & Mole concept and mole conversion, nd). First using the following gas law the volume of gas at NTP has to be find out (Physical laws & Scaling, 2003).P1 V1P2V2----=------- ----- (1)T1T2As we have already collected the P1 (barometric pressure), V1( the gas volume ), T1 (the water temperature) and P2 is 760 mm of Hg and T2 is 273K and putting all values in above equation we will get, V2 the volume of gas at NTP. Now according to equation 1, 2CuCO3(s) ----- Cu2O(s) + 2 CO2 (g) + O2 (g) We will get 2 moles of carbon dioxide and 1/2 mole of oxygen from 2 mole of copper carbonate. Now the molecular weight of CuCO3 = 123.5 The Weight of copper carbonate taken for study = 0.2 gm.Therefore the mole of copper ca