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# Which equation is correct for this reaction involving Copper Carbonate?

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Introduction

WHICH EQUATION IS CORRECT??? 1. 2CuCO3 (s)-------- Cu2O (s) + 2CO2 +1/2O2 (g) 2. CuCO3 (s) --------- CuO (s) + CO2 (g) I will carry out an experiment, which will tell me which of the two equations is true. To do this I will measure the amount of gas given off in the reaction. From my calculations I can work out which equation is true, as equation 1 gives out more gas than equation 2. I shall use the following apparatus: Stand Clamp Boss Gas syringe Delivery tube Bung Boiling tube Bunsen burner Heat proof matt Test tube holder Diagram: I will add 0.337g of copper carbonate (green powder) ...read more.

Middle

Any water vapour that was given off will cool at this point so will not affect my results. The experiment should be repeated twice more for an average reading to be obtained. A gas syringe is used because it is a very accurate way of recording gas. The gas in the gas syringe must have cooled to room temperature before a reading is taken, as this will affect the accuracy of the results. Basic cooper carbonate contains 61 % by mass of CuCO3. The relative atomic mass of CuCO3 is 123.5g. 123.5/61 * 100 = 202.45, 1 mol of Basic copper carbonate has the mass of 202.45g. ...read more.

Conclusion

Gas also expands when heated so this will have to be considered. I will aim to collect around 50 cm3 of gas. 1. 202.45/30,000 * 50 = (0.337 mol) 50 cm3 2. 24,000/30000 * 50 = 40 cm3 I will use 0.337g or basic copper carbonate, Equation 1 if true will give out 50 cm3 of gas; equation 2 if true will give out 40 cm3 of gas. 1 mol of any gas at room temperature and 1 atmospheric pressure will occupy a space of 24dm3. From this and the amount of gas given off I can work out the mol of the gas given off and find out which of the two equations are correct. ...read more.

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# Related AS and A Level War Poetry essays

1. ## The idea of the experiment is to determine which equation is correct. There are ...

5 star(s)

I made sure that all the CuCO3 had turned black so that all the gas will be given off by heating the test tube uniformly under a Bunsen burner. 4. For my two experiments, I used the same boiling tube so that the volume of air in the test tube wouldn't change for the 2 experiments.

2. ## Which Equation is Correct?

Diagram of an endothermic reaction Fair Testing The conditions must ensure a fair test, certain variables must be maintained, the main variable that has to be kept the same is temperature, the collected gas should be kept at room temperature, the gas syringe should be kept as far away as possible when heating the copper carbonate.

1. ## Which Equation is Correct?

* I will make the copper carbonate into powder to increase its surface area and thus increasing the rate of reaction. * I will be able to obtain more readings in the time period so a more precise average can be produced.

2. ## Which equation is correct?

The beaker will also be filled with water. When placing the gas burette in the beaker which is full of water I have to make sure no water is lost otherwise it can have an affect on the experiment. 4.

1. ## Right equation

24 000cm3 = 1.25 ? 24 000 = 30 000 cm3 30 000 will be produce by 1.25 moles of Copper carbonate. Equation 2 Volume = Moles ? 24 000cm3 = 1 ? 24 000 = 24 000cm3 In this experiment the volume of gas formed will be collected using an apparatus with the maximum capacity of 100cm3.

2. ## The aim of this experiment is to prove which of these two equations is ...

a trough is, in itself, a more careful way of ensuring no gas is lost as the gas syringe has airtight seals. The bung must also be inserted tightly into the test tube before the decomposition begins. Keeping measurements accurate: The gas syringe must be at 0 before the experiment begins.

1. ## Determine which of two equations below is the correct equation of the thermal decomposition ...

One mole of gas at room temperature (25�C) and pressure (1 atm) occupies a volume of 24dm3 Endothermic reaction The reaction involved is an endothermic one, energy is taken in to break down the copper carbonate, the energy content of the products is higher than that of the reactants as heat is taken in by the system.

2. ## To determine the correct equation of the thermal decomposition of copper carbonate.

is shall use standard pressure which is 1 atmosphere = 103kpa For T I shall use a standard 20oC which is 293K Moles = 0.00101 Calculating Volume of Gas: V = (nRT) � P Volume of gas = (0.00101x8.314x293) / 103 Volume of gas = 0.02388 dm3 = 23.9cm3(3.s.f)

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