1. In a regular binary A-B solid solution, the molar fraction of component B is 0.4 and its activity is 0.5 at temperature of 700 K. What is the lowest temperature that can prevent the phase separation in the regular solid solution?

17. The vapor pressures of each component in a mixture of propanone (acetone, A) and trichloromethane (chloroform, C) were measured at 35 °C with the following results: 0 0 347 0.20 35.3 250 0.40 82.5 175 0.60 142 92.3 XC Pc (torr) PA (torr) What is the Henry's law constant for chloroform in this system? A) 365 torr B) 347 torr C) 177 torr D) 273 torr E) 485 torr 0.80 200 36.8 1 273 0

The value of the thermodynamic solubility product of silver bromide in pure water is Ksp = 5.0x10-13. Calculate the value of the concentration solubility product of silver bromide in a 0.10 M NaNO3 solution. Let's assume the temperature is the same.

6.

If 2.00 mL of 0.500 M NaOH are added to1.000 Lof0.400 M CaCl2,what is the value of the reaction quotient and will precipitation occur?

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4) For such a phase diagram, a) Do you expect the newly formed bonds (A-B) are stronger than the initial bonds or not? Briefly explain the reason. Is this solution formation reaction endothermic or exothermic? b) Then, is the activity coefficient greater than 1 or not? How would you expect change in volume and change in Enthalpy due to formation of the solution? c) Describe the function (interatomic bond parameter). Explain/compare the bond strength (newly formed A-B vs initial A- A and B-B) depending on sign of the 2-function. T L+α L A Хв B