Physical Chemistry
2nd Edition
ISBN: 9781133958437
Author: Ball, David W. (david Warren), BAER, Tomas
Publisher: Wadsworth Cengage Learning,
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Chapter 7, Problem 7.51E
Calculate the solubility of phenol,
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In a constant‑pressure calorimeter, 55.0 mL55.0 mL of 0.300 M Ba(OH)20.300 M Ba(OH)2 was added to 55.0 mL55.0 mL of 0.600 M HCl.0.600 M HCl.
The reaction caused the temperature of the solution to rise from 22.19 ∘C22.19 ∘C to 26.28 ∘C.26.28 ∘C. If the solution has the same density and specific heat as water (1.00 g/mL1.00 g/mL and 4.184J/g⋅°C,)4.184J/g⋅°C,) respectively), what is Δ?ΔH for this reaction (per mole H2OH2O produced)? Assume that the total volume is the sum of the individual volumes.
When 4 grams of a certain compound is dissolved in 61 grams of water in a calorimeter, the temperature of the calorimeter changes from 25.00ºC to 26.98 ºC. Assuming that the specific heat capacity for the resulting solution is 4.184 J/(g oC), and the heat for this solvation is found as x kJ, what is the value of x?
Potassium nitrate, KNO3, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 23.4 g of KNO3 is dissolved in
259 g of water at 23.00 °C.
H₂O
KNO3(s) →→→ K+ (aq) + NO3(aq)
The temperature of the resulting solution decreases to 21.20 °C. Assume that the resulting solution has the same specific heat as
water, 4.184 J/(g. °C), and that there is negligible heat loss to the surroundings.
How much heat was released by the solution?
9soln =
kJ
What is the enthalpy of the reaction?
AHrxn=
kJ/mol
Chapter 7 Solutions
Physical Chemistry
Ch. 7 - Prob. 7.1ECh. 7 - Prob. 7.2ECh. 7 - Prob. 7.3ECh. 7 - Prob. 7.4ECh. 7 - 7.5. For this chemical equilibrium in an enclosed...Ch. 7 - 7.6. The production of nitrogen gas for automobile...Ch. 7 - Prob. 7.7ECh. 7 - Prob. 7.8ECh. 7 - 7.9. For a solution of and in which , what are...Ch. 7 - Prob. 7.10E
Ch. 7 - Prob. 7.11ECh. 7 - Prob. 7.12ECh. 7 - Prob. 7.13ECh. 7 - 7.14. Determine the total equilibrium pressure of...Ch. 7 - Prob. 7.15ECh. 7 - 7.16. Many police departments use breath tests to...Ch. 7 - Prob. 7.17ECh. 7 - 7.18. The vapor pressures of pure liquid A and...Ch. 7 - 7.19. At , the vapor pressure of pure ethanol, ,...Ch. 7 - 7.20. A solution of methanol () and ethanol () has...Ch. 7 - 7.21. At , the vapor pressure of pure ethanol, ,...Ch. 7 - Prob. 7.22ECh. 7 - Prob. 7.23ECh. 7 - Prob. 7.24ECh. 7 - Prob. 7.25ECh. 7 - Prob. 7.26ECh. 7 - Prob. 7.27ECh. 7 - Prob. 7.28ECh. 7 - What are mixG and mixS for the combination of...Ch. 7 - Prob. 7.30ECh. 7 - Prob. 7.31ECh. 7 - Prob. 7.32ECh. 7 - Prob. 7.33ECh. 7 - Prob. 7.34ECh. 7 - Prob. 7.35ECh. 7 - Prob. 7.36ECh. 7 - Prob. 7.37ECh. 7 - Prob. 7.38ECh. 7 - Convert the units of Henrys law constant for CO2,...Ch. 7 - Prob. 7.40ECh. 7 - Prob. 7.41ECh. 7 - Prob. 7.42ECh. 7 - 7.43. The Henry’s law constant for methyl...Ch. 7 - Prob. 7.44ECh. 7 - 7.45. At , the mole fraction of air in water is...Ch. 7 - 7.45. At , the mole fraction of nitrogen, , in...Ch. 7 - Prob. 7.47ECh. 7 - 7.48. Nitrogen narcosis begins to affect scuba...Ch. 7 - Prob. 7.49ECh. 7 - 7.50. What is the approximate molarity of a...Ch. 7 - 7.51. Calculate the solubility of phenol, , in...Ch. 7 - a Convert the calculated mole fraction of...Ch. 7 - Prob. 7.53ECh. 7 - Consider the following solutions: Sodium chloride...Ch. 7 - Determine how ideal the following solutions are by...Ch. 7 - Iron metal has a fusH value of 14.9kJ/mol and is...Ch. 7 - Prob. 7.57ECh. 7 - 7.58. Do communities that use salt in the winter...Ch. 7 - 7.59. Starting from in figure in the liquid...Ch. 7 - Prob. 7.60ECh. 7 - Prob. 7.61ECh. 7 - Estimate the solubility of Na in Hg at 0C. The...Ch. 7 - Prob. 7.63ECh. 7 - Prob. 7.64ECh. 7 - Explain how the unit molarity automatically...Ch. 7 - Prob. 7.66ECh. 7 - The vapor pressure of isopropanol is 47.0mmHg at...Ch. 7 - A sample of 25.0g of solid anthracene is dissolved...Ch. 7 - Prob. 7.69ECh. 7 - A technician dissolves 12.00g of a nonvolatile...Ch. 7 - Prob. 7.71ECh. 7 - Estimate the osmotic pressure, freezing point, and...Ch. 7 - In February 2006, a pharmacy technician...Ch. 7 - Prob. 7.74ECh. 7 - Calculate the freezing point depression of mercury...Ch. 7 - Glacial acetic acid has a melting point of 16.0C...Ch. 7 - Prob. 7.77ECh. 7 - Prob. 7.78ECh. 7 - Use the system in exercise 7.62 to calculate the...Ch. 7 - Prob. 7.80ECh. 7 - Prob. 7.81ECh. 7 - Prob. 7.82ECh. 7 - Prob. 7.83ECh. 7 - Prob. 7.84ECh. 7 - Prob. 7.85ECh. 7 - Determine osmotic pressures for each solution...Ch. 7 - Prob. 7.87ECh. 7 - The vapor pressures of benzene and and 1,1...Ch. 7 - Prob. 7.89ECh. 7 - Tabulate the solubility of naphthalene in toluene...
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