Help answer. 20/1 pointCalculate AG, in kJ, for the dissolution equilibrium(equilibrium of a saturated solution) of CaF2 at 25°C.Enter your answer, rounded to the correct number ofsignificant figures, into the box. Do not use scientificnotation. If the answer is a decimal, include a O beforethe decimal point. If your answer is negative, includethe negative sign with no space between it and thenumber.491For T=25.0°C, AG =KJ

Step 1: We know that, ΔG=−RTlnKspThe Ksp for CaF2 is 3.9 × 10-11 at 25 °C. Step 2:…

Answered: 2 0/1 point Calculate AG, in kJ, for…

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 47P

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Use the following data to calculate the enthalpy of solution of sodium perchlorate, NaClO4: fH(s)=382.9kJ/mol and fH(aq,1m)=369.5kJ/mol
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The vapor pressures of several solutions of water-propanol (CH3CH2CH2OH) were determined at various compositions, with the following data collected at 45C: H2O Vapor pressure(torr) 0 74.0 0.15 77.3 0.37 80.2 0.54 81.6 0.69 80.6 0.83 78.2 1.00 71.9 a. Are solutions of water and propanol ideal? Explain. b. Predict the sign of Hsoln for water-propanol solutions. c. Are the interactive forces between propanol and water molecules weaker than, stronger than, or equal to the interactive forces between the pure substances? Explain. d. Which of the solutions in the data would have the lowest normal boiling point?
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1 The molal freezing point depression constant K=2.02 °C kg⋅mol for a certain substance X. When 34. g of urea ₂ CO): со are dissolved in 800. g of X, the solution freezes at 3.0 °C. Calculate the freezing point of pure X. ((NH2),C Round your answer to 2 significant digits. °C x10 X
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Pure cyclohexane, C 6 H 12 , has a freezing point of 6.53 ° C. Its freezing point depressionconstant is: K f = 20.0 ° C m -1 . A solution was made by taking 18.55 g of an unknownnonelectrolyte and dissolving it in 150.0 g of cyclohexane. The measured freezing point ofthe solution was 4.28 ° C. Calculate the molecular weight of the unknown substance.
Give handwritten answer of the following question.
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Ee.131.

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