1)Based on your starting temperature calculate the DELTA Greaction for the neutralization for phosphoric acid from your experimental molar enthalpy (Hreaction) and the standard entropy change (Soreaction) calculated in the Pre-lab. Use the equation G = H - TS 2)Use a table of standard free energies of formation (Gof) to calculate the ∆Goreaction of neutralization, for H3PO4(aq) reacting with NaOH(aq). Consider this the accepted value of ∆G. mL H3PO4/mLNaOH Initial Temp Max Temp Min Temp Trial 1 50mL/50mL 21.6C 30.67C 20.18C Trial 2 50mL/50mL 16.5C 30.65C 16.46C Trial 3 48.5mL/50mL 18.8C 30.82C 18.8
1)Based on your starting temperature calculate the DELTA Greaction for the neutralization for phosphoric acid from your experimental molar enthalpy (Hreaction) and the standard entropy change (Soreaction) calculated in the Pre-lab. Use the equation G = H - TS 2)Use a table of standard free energies of formation (Gof) to calculate the ∆Goreaction of neutralization, for H3PO4(aq) reacting with NaOH(aq). Consider this the accepted value of ∆G. mL H3PO4/mLNaOH Initial Temp Max Temp Min Temp Trial 1 50mL/50mL 21.6C 30.67C 20.18C Trial 2 50mL/50mL 16.5C 30.65C 16.46C Trial 3 48.5mL/50mL 18.8C 30.82C 18.8
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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1)Based on your starting temperature calculate the DELTA Greaction for the
neutralization for phosphoric acid from your experimental molar enthalpy
(Hreaction) and the standard entropy change (Soreaction) calculated in the
Pre-lab. Use the equation G = H - TS
2)Use a table of standard free energies of formation (Gof) to calculate the
∆Goreaction of neutralization, for H3PO4(aq) reacting with NaOH(aq).
Consider this the accepted value of ∆G.
|
mL H3PO4/mLNaOH |
Initial Temp |
Max Temp |
Min Temp |
|
|
Trial 1 |
50mL/50mL |
21.6C |
30.67C |
20.18C |
|
Trial 2 |
50mL/50mL |
16.5C |
30.65C |
16.46C |
|
Trial 3 |
48.5mL/50mL |
18.8C |
30.82C |
18.8 |
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