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Part 1)A non-volatile solute depresses the freezing point of cyclohexane by 4C. If cyclohexane has the formula C6H12 calculate the mole fraction of solute and solvent present in the solution.
Part 2) The vapor pressure of pure cyclohexane is 32.0 torr at its freezing point of 5.5C. Calculate the vapor pressure of the solution in part 1 at this temperature.
sunlight with a wavelength greater than 240nm. What is the energy available for the dissociation of molecular oxygen at 200nm?
If you have a beaker of gas and all of the gas in that beaker is moved to a container half the size, the temp is maintained, what would the gas look like
a reaction takes place in which a gas is one of the products. The gas had a d=1.81 g/L at 1.00 atm and 23 degrees C. What is the molar mass and identity of the gas?
A chemical process is designed to produce ethylene from ethane according to the reaction: C2H6 (ethane) ? C2H4 (ethylene) + H2 The fresh feed to the process contains pure ethane at a flowrate of 100 mole/min. The fresh feed is mixed with a recycl..
gaseous hydrocarbon required 50 mL of oxygen for complete combustion. If 30 mL of CO2 gas were evolved, what is the molecular formula of the hydrocarbon?
What is the vapor pressure, at 28 degrees C, of a solution made by mixing 80.0 g of C3H7SH and 120.0 g of CH3CN, if Raoult's Law is obeyed
Rates of reactions: Rate = k [A]^m [B]^n where the reaction time = 1 / Rate. Two chemical experiments were performed to determine the exponent "n". (We will assume that "m" is known).
Use the angular overlap method to calculate the energies of both ligand and metal orbitals for trans {Cr(NH3)4Cl2}+, taking into account that ammonia is a strong sigma donor ligand than chloride , but chloride is a stronger pie donor. use the 1 an..
If you want to prepare a buffer with a pH of 4.30 with HOAc (acetic acid) and NaOac, what ration of NaOAc/HoAc should you use? (pKa of HOAc is 4.74)
A buffer is prepared by mixing 429 mL of 0.255 M NaOH with 677 mL of 0.795 M sodium bicarbonate (NaHCO3). Given that the Ka1of H2CO3 is 4.5 x 10-7
When maleic acid is heated to about 100C it forms maleic anhydride, however fumaric acid requires a much higher temperature (250-300C) before it dehydrates
The value of Kc for this reaction is 5.0 at 600 K. What are the equillibrum partial pressures of the three gases if a reaction vassel initially contains a mixture of the reactants in which Pco=Pcl2=0.215 atm and Pcocl2= 0.000 atm?
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