Which equation is correct Essay Example | Topics and Well Written Essays - 750 words

Which equation is correct - Essay ExampleBecause, strapper has cardinal oxides Copper (I) oxide Cu2O and Copper (II) oxide CuO thitherfore, there squirt be following two possible equations for thermal decomposition of Copper (II) carbonateIt is to be determined as which of the two equations is the correct equation. Looking at the right side of equation, we find the suggestion for designing an experiment to determine the correct equation of the thermal decomposition.There are two clues 1. hole of the black residue and 2. Volume of the gas liberated. If one starts the thermal decomposition experiment with two moles i.e. 247 grams (2x123.5 grams) of blur carbonate and mass of the black residue is 143 gram, then Equation 1 is correct on the separate hand the mass of black residue being 159 grams implies Equation two being correct.One can measure the volume of the gas released as well. In case of Equation 1 being correct, two moles of copper carbonate will give two and a half mole s of carbon dioxide gas, which is 2.5x22.4 liters = 56 liters at STP (Standard Temperature and Pressure, which is 273.16 K and 1 Atmosphere). In case of Equation 2 being correct, two moles of copper carbonate will give only two moles of gases, which will occupy 44.8 liters at STP. Based on these clues, we design the following experiment to determine the correct equation for thermal decomposition of copper carbonate.pneumatic trough, test tube (13 x 100 mm), one hole stopper to fit test tube, shaping tube (from pulled Beral), graduated cylinder (100 mL), thermometer, laboratory burner, test tube clamp, CuCO3 (solid), balance5. Bubbles started getting into the graduated cylinder. Towards the suppress of the decomposition reaction the rate of CO2 release slowed down. When the bubbling stopped, the burner and the delivery tube were removed.Because 2.5x10-3 moles of copper process gives 2.5x10-3 moles of carbon dioxide gas, therefore, Equation 2 is the correct equation for decompositi on of the copper carbonate.