Chemistry lab questions where do I begin to calculate delta H and delta S,should I convert...
Using the thermodynamic data given in
the procedure, calculate ∆H°, ∆S°, and
∆G for the dissolution of each salt in Part 1. Use the
initial temperature you recorded in lab for the ∆G
calculation.
Data Table 1 Salt Observations Mass of Salt (g) Volume of Water (ml) 5.0 Initial Final Temperature Temperature (°C) (°C) 1.0173 23.1 21.9 Sodium Chloride completely dissolved, slightly cooler 5.0 1.0233 22.8 15.2 Potassium Chloride completely dissolved, cold to the touch 5.0 0.9824 23.2 30.7 Calcium...
- T 2 31 5 6 Using the thermodynamic data given in the procedure, calculate AH°, AS, and AG for the dissolution of each salt in Part 1. Use the initial temperature you recorded in lab for the AG calculation. AH (kJ/ S (J/mol K) mol) Salt Observations Volume of Water (ml) 5.0 Mass of Salt (g/ Initial Final Temperature Temperature 411.1 72.12 Sodium Chloride 1.0173 23.1 219 82 NaCl) KCI (5) CaCl (s) Nat(a) 436.7 -795.4 completely dissolved slipy...
NaCl=20.9 C
KCl=20.4 C
CaCl2=20.4 C
III. Calculations Given the following thermodynamic data, calculate AHⓇ, AS, and AG for the dissolution of each salt in Part 1. Use the initial temperature you recorded in lab for the AG calculation. NaCl (s) KCI (s) CaCl2 (s) Na* (aq) Ca2+ (aq) Cl(aq) K+ (aq) AH° (kJ/mol) Sº (J/mol K) 411. 1 7 2.12 -436.7 82 -795.4 108.4 -239.66 60.2 -542.8 -53.1 -167.46 55.1 -251.2 103 PROCEDURE Part 1. Dissolution of Salts In...