In the gas phase reaction 2 A(g) + B(g) = 3 C (g) +2 D (g), it was found that when 1.00 mol A, 2.00 mol B and 1.00 mol D were mixed and allowed to come to equilibrium at 25°C, the resulting mixture contained 0.9 mol C at a total pressure of 1.00 bar. Calculate (a) the mole fractions of each species, (b) Kx, (c) Kp and (d) AGº. [0.087 (A); 0.370 (B); 0.196 (C); 0.348 (D); 0.326; 0.325; 2.76 kJ]

The strongest solute-solvent interaction that exists when calcium chloride dissolves in water is a(n)… a. dipole-dipole force b. dipole-induced dipole force c. dispersion force d. hydrogen bond e. ion-dipole force

In the lab, a student follows the following steps to determine the freezing point and molality of a deicer solution.  1.   Measured the mass of calorimeter with stir bar. 2.   Measured the mass of deicer. 3.   Measured the volume of water and transfered it to the calorimeter. 4.   Added the deicer to calorimeter and dissolved it in the water. 5.   Measured the mass of the calorimeter with its contents. 6.   Added ice to the calorimeter and reweigh it. 7.   Placed a lid on the calorimeter, monitored the temperature of the solution, and recorded the freezing temperature.   8.   Decanted the deicer solution, keeping the stir bar and remaining ice. Then measured the mass of the calorimeter with its remaining contents. Trial 1 Freezing temperature of deionized water 0.02°C Deicer used (chemical formula) CaCl2 Mass of calorimeter + stir bar 12.74 g Mass of deicer 4.27 g Volume of water 58.6 mL Mass of calorimeter, stir bar, deicer, and water…

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