Question

please solve 9-14

Gibb's Free Energy, Entropy, and Spontaneous Reactions Results/Observations Run 2 Run 1 52190.5739 0,003 mol 0.0033 e อ. 250 0.230g 0.0047 m . ง : d043 mol 1. Mass of barium hydroxide octahydrate 2. Moles of barium hydroxide octahydrate 3. Mass of ammonium chloride 4. Moles of ammonium chloride 5. Limiting reagent 6. Initial temperature 7. Final temperature 8. AT 9. Qran 10. ΔΗ 11. Average ΔΗ 12. Predicted sign of AS 13. Calculated AG (from Table 1) 20.1'c 21.C 50 33J5.035J 14. Calculated AS (using ΔG-ΔΗ-TAS) Explanation of predicted sign of AS: data included below. For AG, use the AG for the products and reac where n, is the stoichiometric coefficient for the product or reactant Now calculate as using the AG, ΔΗ, T (use the initial temperature in and Equation 1. Table 1. Thermodynamic Properties at 25 °C Substance AGt (kJ/mol) Ba(OH)2 8H20(s) NH4CI(s) BaCl2 2H20(s) NH3(aq) H20(0) NH4NO3(s) CaCl2(s) NH4 (aa) NO3 (aq) Ca2+(aq) Cr(aq) -2793 203 -1296.5 -26.50 237.2 183.9 748.8 -79.3 108.7 -553.6 -131.2

Answer 1

o.co4-7 △GYxm--1296.SK) m oli xo.oo3 molet 2xo.oo3molex C26.so)ICJwe +8x0 003 (-237.2) KoT-(003 mole x C2113 mok -σ.oo47 moltx (-203) KJmoll KT -o.ooSo34 x 0.0047 21.3°C 0.001356 KT / K (os) =