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A solution is made by dissolving 0.687 mol of nonelectrolyte solute in 797 g of benzene. Compute the freezing point and boiling point of the solution. Constants may be found here.
Tf=?Tb=?
Given that the rate constant is 4.0×10-4 at 25.0 degrees C and that the rate constant is 2.6×10-3 at 42.4 degrees C, what is the activation energy in kilojoules per mole?
At a certain temperature, reaction has equilibrium constant (Kc) of 1.9 x10^19. Determine the equlibrium constant for the reaction based on this information at the same temperature.
Determine a value for the gas constant, R, in units atm L/mol K. Using the following data. Determine the precent error between your value and the expected value for R. This is over water.
If 12800 calories is required to change 45g of substance X from a liquid to a gas, what is the heat of vaporization of substance X?
0.0200 mole of HCl and 0/0200 mole of NaOH react in an open calorimeter and produce 100 J of heat what is the enthalpy of the reaction per mole of HCl
a projectile is launched with an initial velocity of 300ms at 55 degrees above the horizontal. what is the straight
Estimate the vapor pressure at temperatures of 273, 298, 363, 383, and 423 K respectively
A sample of methane gas at a pressure of 0.801 atm and a temperature of 26.9oC, occupies a volume of 687 mL. If the gas is allowed to expand at constant temperature until its pressure is 0.438 atm, the volume of the gas sample will be
A buffer is made by mixing HCN and KCN to give a solution whose pH is 9.49. If the KCN molarity is 0.20 M, what is the molarity of the HCN?
determine K for this reaction When a sample of 5.63 grams of pure C 5 H 6 O 3 (g) was sealed into an otherwise empty flask of 2.50 L and heated to 200.
Assuming that you start with 2.00 g of sodium benzoate and 5 mL of 3M HCL, what is the limiting reagent in this reaction. you may need to calculate mmoles of sodium benzoate first.
What was the calculated PH value obtained for the reaction NH3 + HCl -› NH4Cl using the thermodynamic data NaOH (aq) + HCl (aq)--> H2O(l) +NaCl (aq) NaOH (aq) + NH4Cl(aq)---> NH3 + NaCl + H2O(l) NH4Cl 2M 20ml NH4OH 2M 10ml HCL 2M 20ml NaOH 2M 20ml
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