Lab 12 - Lab 12 Thermidynamics of Borax Solubility Jazmin...

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Fundamentals of Organic Chemistry
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Chapter 11 / Exercise 11.34
Fundamentals of Organic Chemistry
McMurry
Expert Verified
Lab 12: Thermidynamics of Borax Solubility Jazmin Agee Lab Partner: Chris H, Bri WApril 19, 2016A.Research Questionsa.What is the concentration of the borate ion from a titration?b.What is the Ksp at a particular temperature?c.What are the thermodynamic results? (H,G,S)B.Observations and Results Table 1.Titration DataMolarity of HCl (M)TrialVolume of HClVolume of saturated borax sample (mL)Temperature (degrees Celsius)Temperature (K)0.5013.471028325.49723.6296.7539.573630948.65743316513.9748321Table 2. Titration Calculations TrialMoles of HCl (mol)Moles of tetraborateion (mol)Moles of sodiumion (mol)Concentration of tetraborate ion (M)Concentration of sodium ion (M)KspLn(Ksp)Temperature (K)1/Temperature (k^-1)1.00178.5 x 10^-420.120.24.0069-4.982830.00352.0027451.37 x 10^-320.1960.3920.060-3.51296.750.00343.004752.38 x 10^-320.3390.6790.156-1.863090.00324.0043252.16 x 10^-320.3080.6180.118-2.143160.00325.006953.475 x 10^-320.4960.9930.489-0.7153210.0031
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Fundamentals of Organic Chemistry
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Chapter 11 / Exercise 11.34
Fundamentals of Organic Chemistry
McMurry
Expert Verified
Graph 1. Ln(Ksp) versus 1/Temperature (K^-1)00000000000-6-5-4-3-2-10f(x) = - 9889.81x + 29.8R² = 0.981/T (K^-1)ln KspCalculations
C.Claims a.From this lab, we found the concentration borate ion from a titrations were

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