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Post Lab Questions: 1. For the solubility of borax, the accepted thermodynamic values are AH =...
Thermodynamic functions for Borax (Ch 18 Individual tBAT Borax Borax (sodium tetraboratedecahydra...
Thermodynamic functions for Borax (Ch 18 Individual tBAT Borax Borax (sodium tetraboratedecahydrate), a mineral found in dry lakebeds in California, is used as a preservative and in the manufacturing of soap and glass. By determining the Ksp of borax at different temperatures, we can determine AH, AS, and AG for the dissolution of borax: HO Na (Borax) Tetraborate) The relationship: In K,-(-ΔΗ/R) (1/T) + (AS/R) has the form of a linear equation, where R is the constant, 8.314 J/K-mol. The...
(2pts) Post-lab Questions AH Choose. ΔΗ (1pts) 1. Do you expect the solubility of Borax to...
(2pts) Post-lab Questions AH Choose. ΔΗ (1pts) 1. Do you expect the solubility of Borax to increase or decrease as temperature increases? Select the option that best explains why. A. Solubility will increase, because as Tincreases the term becomes smaller therefore will get larger. B. Solubility will increase, because as Tincreases the IT term becomes smaller therefore K will get smaller. C. Solubility will decrease, because as increases the term becomes smaller therefore Kwill get smaller. D. Solubility will decrease,...
a. A process has standard-state thermodynamic values of AH° = -25.75 kJ/mol and 45º = -75.4...
a. A process has standard-state thermodynamic values of AH° = -25.75 kJ/mol and 45º = -75.4 J/mol-K. What are 4Gº and K at 300 K? At what temperature is the system at equilibrium under standard state condition? (4 pts)
The following reaction has the thermodynamic values at 298 K: AH° =-136.9 kJ/mol and AS" =...
The following reaction has the thermodynamic values at 298 K: AH° =-136.9 kJ/mol and AS" = -120.6 J/mol K. HаС — СHз (9) Нас— CHz (0) + Hа (0) a. Calculate AG° at 298 K for this reaction in kJ/mol (Enter your answer to four significant figures.) kJ/mol b. The reaction is c. The reaction is.
Enthalpy and Entropy Changes of Dissolving Borax Plot your values of ln(Ksp) vs. 1/T and find...
Enthalpy and Entropy Changes of Dissolving Borax
Plot your values of ln(Ksp) vs. 1/T
and find the slope and y-intercept of the best fit line.
Use the equation for the best fit line and the following
equation
ln(K)=−ΔH∘RT+ΔS∘Rln(K)=−ΔH∘RT+ΔS∘R to calculate ΔH° and
ΔS° for dissolving Borax
Please help me solve the incorrect ones, thank you!
Table 2. Calculations ~60°C trial ~50°C trial ~40°C trial ~30°C trial ~20°C trial Vol. of HCl used (mL) 15.00 13.00 6.000 10.00 2.00 Moles of...
how can i calculate theoradical values based on this data Set B-create a Table 6 that compares (% error) in your exp...
how can i calculate theoradical values based on this data
Set B-create a Table 6 that compares (% error) in your experimentally determined AG, AH, and AS values at 25°C (Table 5) for the solubility of KNO3 to those you will calculate using the following data: Literature Reference Values at 298.15 K AH Substance (kJ/mol) -251.8 -207.0 KNO, -492.7 K ( AG (kJ/mol) -285.8 -113.7 -393.1 (J/K) 112.3 155.8 132.9 NO Have to include this Theoretical AHºran (kJ/mol) Theoretical AS...
Given the values of AH and As, which of the following changes will be spontaneous? (i)...
Given the values of AH and As, which of the following changes will be spontaneous? (i) AH = 25 kJ/mol; AS = 5 J/Kmol; T = 300 k (ii) AH = 25 kJ/mol; AS = 100 J/Kmol; T = 300 k (iii) AH = -10 kJ/mol; AS = 5 J/Kmol; T = 300 k (iv) AH = -10 kJ/mol; AS = -40 J/Kmol; T = 300 k Select one: O a. i and iii only O b. ii and iv...
- T 2 31 5 6 Using the thermodynamic data given in the procedure, calculate AH°,...
- 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...
Reaction 2 (Ma Reaction 1 (Mgo) 1. Volume of 1.00 M HCT 2. Final temperature, t 3. Initial temper...
please help fill in data table and answer questions.
please show all work. thank you!
Reaction 2 (Ma Reaction 1 (Mgo) 1. Volume of 1.00 M HCT 2. Final temperature, t 3. Initial temperature, t, EO.O ml 50.0 mt 28 a0 oc 4. Change in temperature, t 5. Mass of solid 203 MgO 6. Heat, q k.J kJ kJ k.I 8. Moles mol Mg mol MgO 9. ΔΗ/mol kJ/mol kJ/mol 10. Determine ΔΗ/mol Mg for reaction (4). (10.) II. Percent...
3. Microcalorimetric measurements of AH® and AS™ for the binding of captopril and lisinopril to ACE...
3. Microcalorimetric measurements of AH® and AS™ for the binding of captopril and lisinopril to ACE are shown in the following table. Conditions were 300 mM NaCl, 50 UM Zn2+, HEPES pH 7, 25° C. Thermodynamic constants for ACE-Inhibitor Association Inhibitor AH°, kJ/mol AS'', J/K mol 25.4 236.2 lisinopril 27.2 250.0 captopril a. Are these associations driven by enthalpy or entropy? Are they endothermic or exothermic? Justify your answers. b. Using these measurements, calculate the Ki for each of these...
Thermodynamic functions for Borax (Ch 18 Individual tBAT Borax Borax (sodium tetraboratedecahydrate), a mineral found in dry lakebeds in California, is used as a preservative and in the manufacturing of soap and glass. By determining the Ksp of borax at different temperatures, we can determine AH, AS, and AG for the dissolution of borax: HO Na (Borax) Tetraborate) The relationship: In K,-(-ΔΗ/R) (1/T) + (AS/R) has the form of a linear equation, where R is the constant, 8.314 J/K-mol. The...
(2pts) Post-lab Questions AH Choose. ΔΗ (1pts) 1. Do you expect the solubility of Borax to increase or decrease as temperature increases? Select the option that best explains why. A. Solubility will increase, because as Tincreases the term becomes smaller therefore will get larger. B. Solubility will increase, because as Tincreases the IT term becomes smaller therefore K will get smaller. C. Solubility will decrease, because as increases the term becomes smaller therefore Kwill get smaller. D. Solubility will decrease,...
a. A process has standard-state thermodynamic values of AH° = -25.75 kJ/mol and 45º = -75.4 J/mol-K. What are 4Gº and K at 300 K? At what temperature is the system at equilibrium under standard state condition? (4 pts)
The following reaction has the thermodynamic values at 298 K: AH° =-136.9 kJ/mol and AS" = -120.6 J/mol K. HаС — СHз (9) Нас— CHz (0) + Hа (0) a. Calculate AG° at 298 K for this reaction in kJ/mol (Enter your answer to four significant figures.) kJ/mol b. The reaction is c. The reaction is.
Enthalpy and Entropy Changes of Dissolving Borax
Plot your values of ln(Ksp) vs. 1/T
and find the slope and y-intercept of the best fit line.
Use the equation for the best fit line and the following
equation
ln(K)=−ΔH∘RT+ΔS∘Rln(K)=−ΔH∘RT+ΔS∘R to calculate ΔH° and
ΔS° for dissolving Borax
Please help me solve the incorrect ones, thank you!
Table 2. Calculations ~60°C trial ~50°C trial ~40°C trial ~30°C trial ~20°C trial Vol. of HCl used (mL) 15.00 13.00 6.000 10.00 2.00 Moles of...
how can i calculate theoradical values based on this data
Set B-create a Table 6 that compares (% error) in your experimentally determined AG, AH, and AS values at 25°C (Table 5) for the solubility of KNO3 to those you will calculate using the following data: Literature Reference Values at 298.15 K AH Substance (kJ/mol) -251.8 -207.0 KNO, -492.7 K ( AG (kJ/mol) -285.8 -113.7 -393.1 (J/K) 112.3 155.8 132.9 NO Have to include this Theoretical AHºran (kJ/mol) Theoretical AS...
Given the values of AH and As, which of the following changes will be spontaneous? (i) AH = 25 kJ/mol; AS = 5 J/Kmol; T = 300 k (ii) AH = 25 kJ/mol; AS = 100 J/Kmol; T = 300 k (iii) AH = -10 kJ/mol; AS = 5 J/Kmol; T = 300 k (iv) AH = -10 kJ/mol; AS = -40 J/Kmol; T = 300 k Select one: O a. i and iii only O b. ii and iv...
- 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...
please help fill in data table and answer questions.
please show all work. thank you!
Reaction 2 (Ma Reaction 1 (Mgo) 1. Volume of 1.00 M HCT 2. Final temperature, t 3. Initial temperature, t, EO.O ml 50.0 mt 28 a0 oc 4. Change in temperature, t 5. Mass of solid 203 MgO 6. Heat, q k.J kJ kJ k.I 8. Moles mol Mg mol MgO 9. ΔΗ/mol kJ/mol kJ/mol 10. Determine ΔΗ/mol Mg for reaction (4). (10.) II. Percent...
3. Microcalorimetric measurements of AH® and AS™ for the binding of captopril and lisinopril to ACE are shown in the following table. Conditions were 300 mM NaCl, 50 UM Zn2+, HEPES pH 7, 25° C. Thermodynamic constants for ACE-Inhibitor Association Inhibitor AH°, kJ/mol AS'', J/K mol 25.4 236.2 lisinopril 27.2 250.0 captopril a. Are these associations driven by enthalpy or entropy? Are they endothermic or exothermic? Justify your answers. b. Using these measurements, calculate the Ki for each of these...
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