Evaluating an enthalpy change that can not be measured directly

Chemistry Experiment. Dr. Watson. Evaluating An Enthalpy Change That Cannot Be Measured Directly. Introduction. We were told that nuclear number 11 hydrogen change decomposes on warm up to give atomic number 11 carbonate, irrigate and carbon dioxide as shown in the par below:-         2NaHCO3(s)--------> Na2CO3 (s) + H2O (l) + CO2 (g) = DeltaH1 This was given as deltaH1 and we had to manoeuvre as part of the experiment. This however cannot be mensurable directly, only if can be found exploitation the enthalpy changes from two new(prenominal) reactions. These being that of sodium hydrogencarbonate and hydrochloric sulphurous and also sodium carbonate and hydrochloric acid. We were given a list of instructions in how to take on expose the experiment, which are given later. incline of Apparatus Used. 1 x 500ml Beaker. 1 x Thermometer(-10 to 50oC). 1 x Polystyrene Cup. 1 x Weighing Balance. 1 x Weighing Bottle. 10 grams of Sodium Hydrogencarbon ate. 10 grams of Sodium Carbonate. A bottleful of 2 molar HCL. Diagram. Method. Three grams of sodium hydrogen carbonate was plodding out accurately victimization a weighting bottle and a balance. wherefore thirty centimetres cubed of 2 molar HCL was measured using a beat cylinder. The acid was then placed into the polystyrene cup and its temperature was taken and recorded using the thermometer.

The pre- weighted sodium hydrogencarbonate was then added to the solution, and the final temperature was recorded. The contents of the cup were then emptied out and the cup was washed out with water and then thor oughly dried. This was do three times for t! he sodium hydrogen carbonate so that I could pack each anomalies that were obtained. The experiment was then repeated in only the analogous manner except sodium carbonate was used kinda of sodium hydrogen carbonate. The results were then tabulated, this table is shown below. Results Table. Results Table... If you want to force back a full essay, order it on our website: BestEssayCheap.com

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