2.) A researcher determined the enthalpy changed associated with the reaction: 2H,S(g) + SO2 > H20(g) +3 S(s) And found the enthalpy change associated with the reaction was: -230.0, -230.2, -230.2, -230.3, -230.6, -230.6, -230.6, -230.8, -230.9 and -232.7 kJ/mol 2.1 Perform a simple Q-test analysis of the data In the next exercises use those data that we are confident are reliable 2.2 Calculate the mean enthalpy change 2.3 Calculate the standard deviation associated with the enthalpy change 2.4 Calculate the median enthalpy change 2.5 Calculate the mode enthalpy change

2.) A researcher determined the enthalpy changed associated with the reaction: 2H,S(g) + SO2 > H20(g) +3 S(s) And found the enthalpy change associated with the reaction was: -230.0, -230.2, -230.2, -230.3, -230.6, -230.6, -230.6, -230.8, -230.9 and -232.7 kJ/mol 2.1 Perform a simple Q-test analysis of the data In the next exercises use those data that we are confident are reliable 2.2 Calculate the mean enthalpy change 2.3 Calculate the standard deviation associated with the enthalpy change 2.4 Calculate the median enthalpy change 2.5 Calculate the mode enthalpy change

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Please help me with the attached question.
How much did our sodium-in-water demonstration raise the temperature of water in the dessicator jar? The reaction we performed was: Na(s) + H2O(l) NaOH(aq) + 1/2H2(g) qreaction = rHo = -184 kJ/mol-rxn Assuming the dessicator jar is well insulated (like our coffee-cup calorimeter), the energy balance is: 0 = qsystem = qreaction + qwater qreaction = -qwater qreaction = -mwater*Cwater*Twater The data from the demonstration was: (a) 1.0 kg water, (b) 22.0oC, (d) Cwater = 4.18 J/g-K, (e) mNa = 0.21 g What was the change in energy, in joules, when the reaction occurred with the given amounts?
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A chemist measures the enthalpy change AH during the following reaction: 2 HNO3(1) + Mg(s)→Mg(NO3),(s) + H2(g) ДН--443. kJ '2 Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction ΔΗ x10 Mg(NO,), (s) + H, (8) → 2HNO,(1) + Mg(s) hno,() + Ma() -- Me(No,),C) + H, G) 1 - Mg(s) 2 Mg(NO,) (s) + ,H, (g) kJ 3. 3 Mg(NO,), (s) + 3H, (g) - 6HNO, (1) + 3Mg(s) ||kJ
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