Plot your values of In(Ksp) VS. 1/Tand find the slope and y-intercept of the best fit line. Use the equation for the best fit line and the following equation In(K) = - + ΔΗ RT R to calculate AH and AS for dissolving Borax What is the slope of your best fit line in the plot? What is ΔΗ (/mol)? What is the y-intercept of your best fit line in the plot? What is AS (J/mol)?
Plot your values of In(Ksp) VS. 1/Tand find the slope and y-intercept of the best fit line. Use the equation for the best fit line and the following equation In(K) = - + ΔΗ RT R to calculate AH and AS for dissolving Borax What is the slope of your best fit line in the plot? What is ΔΗ (/mol)? What is the y-intercept of your best fit line in the plot? What is AS (J/mol)?
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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Transcribed Image Text:Plot your values of In(Ksp) VS. 1/Tand find the slope and y-intercept of the best fit line. Use the equation for the best fit
line and the following equation
In(K) = - AH°
RT
AS°
R
to calculate AH and AS for dissolving Borax
What is the slope of your best fit line in the plot?
What is AH (kJ/mol)?
What is the y-intercept of your best fit line in the plot?
What is AS (J/mol)?
![Table 2. Calculations
-60°C trial
-50°C trial
~40°C trial
~30°C trial
~20°C trial
Vol. of HCl used
19.87
12.93
12.37
9.03
6.30
(mL)
Moles of HCI
9.94
6.47
6.19
4.52
3.15
used (mol)
Moles of borate
4.97*10^3
3.23
3.10
2.26
1.57
present (mol)
[Borate] (M)
1*10^3
6.55*10^2
6*10^2
4.5*10^2
3.14*10^2
4*10^9
1.124*10^9
8.64*10^8
0.377*10^9
1.23*10^8
Ksp
In(Ksp)
19.75
18.63
22.04
20.84
20.58
0.003
0.00309
0.00159
0.0033
0.00341
1/T (K-1)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F108a0acc-c86a-4fb9-81b6-4d3403f04067%2F69216bf5-ae47-4395-9bf2-0f6949d3c214%2F3ehdkv7_processed.png&w=3840&q=75)
Transcribed Image Text:Table 2. Calculations
-60°C trial
-50°C trial
~40°C trial
~30°C trial
~20°C trial
Vol. of HCl used
19.87
12.93
12.37
9.03
6.30
(mL)
Moles of HCI
9.94
6.47
6.19
4.52
3.15
used (mol)
Moles of borate
4.97*10^3
3.23
3.10
2.26
1.57
present (mol)
[Borate] (M)
1*10^3
6.55*10^2
6*10^2
4.5*10^2
3.14*10^2
4*10^9
1.124*10^9
8.64*10^8
0.377*10^9
1.23*10^8
Ksp
In(Ksp)
19.75
18.63
22.04
20.84
20.58
0.003
0.00309
0.00159
0.0033
0.00341
1/T (K-1)
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