The Enthalpy of Hydrogen Peroxide Decomposition in Aqueous Solution, Lab Reports of Thermodynamics

Download The Enthalpy of Hydrogen Peroxide Decomposition in Aqueous Solution and more Lab Reports Thermodynamics in PDF only on Docsity!   This work is licensed under a  Creative Commons Attribution‐NonCommercial‐NoDerivs 3.0 Unported License  Thermodynamics Experiment The Enthalpy of H2O2 Decomposition in Aqueous Solution INTRODUCTION The aim of this experiment is to illustrate the use of calorimetry in the measurement of thermodynamic data and to illustrate the use of basic thermodynamics to calculate enthalpies of reaction and bond dissociation energies. RESULTS The mass of sodium nitrate NaNO2 = 11.30 g. The mass of sulphamic acid NH2SO3H = 5.00 g. The mass of manganese dioxide MnO2 = 6.00 g. The concentration of hydrogen peroxide = 8.920 mol dm–3. Calibration of the calorimeter Decomposition of Hydrogen Peroxide time / min temperature / ˚C time / min temperature / ˚C 0 19.18 0 19.43 1 19.21 1 19.45 2 19.24 2 19.47 3 19.28 3 19.50 4 19.31 4 19.52 5 19.36 5 19.54 6 21.17 6 21.67 7 21.20 7 21.70 8 21.23 8 21.74 9 21.26 9 21.78 10 21.28 10 21.82   This work is licensed under a  Creative Commons Attribution‐NonCommercial‐NoDerivs 3.0 Unported License  DATA TREATMENT Temperature rise = 21.16 – 19.38 ˚C = 1.78 ˚C or 1.78 K Temperature rise = 21.65 – 19.55 ˚C = 2.10 ˚C or 2.10 K