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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
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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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)?
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)
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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