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A vapor composed of 0.20 mole fraction ethanol and 0.80 mole fraction acetic acid at 120.0 mmHg (absolute), is in equilibrium with a liquid phase also composed of ethanol and acetic acid. Assume that the liquid is an ideal solution and apply Raoult\'s law to find the following. 1-What is the temperature of the liquid? (in Celsius) 2- What are the mole fractions of the liquid phase? 2.1- X_E (mol ethanol / mol) 2.2-X_A (mol acetic asid / mol)
When heating the acetone in a water bath, why must there be a hole in the foil cap
When 0.455g of Thyroxine is dissolved in 10.0g of benzene, the freezing point of the solution is depressed by 0.3000C. What is the molar mass of Thyroxine?
If there is a phasechange you need to then write a net ionic equation and list the spectator ions barium chloride plus silver nitrate equals barium nitrate plus silver chloride
A reaction of the form aA---->Products gives a plot of ln[A] vs time (in seconds) which is a straight line with a slope of -7.35e-3. Assuming [A]0=0.0100M,
Calculate the average absorbance and use this value for an absorbance point on your graph. Use the printed graph from above, find the average Absorbance of the unknown on the y-axis
What is a likely mechanism for the reaction below: (2Z)-7-methylocta-2,6-dienal using heat and a hydroxyl to form 6-methylhept
A reaction takes place with a mass defect (lost mass) of 0.030kg. How much energy does the correspond to?
Petroleum is a fossil fuel containing many different carbon compounds. If the carbon atoms in petroleum have been in the ground for 325 million years
What is the work done by the copper bar on the surrounding atmosphere? The density of copper at 20 degree celsius is equal to 8920 kg/m3.
In the chemical kinetics experiment, describe how you plan to mix the dye and bleach to start the reaction and when you expect to start recording the time? Include the volumes of dye and bleach solution you intend to mix? How are you going to make..
A common rocket propellant is a mixture that includes liquid hydrazine, N2H4, as a fuel and liquid hydrogen peroxide, H2O2, as an oxidizer. The products formed are nitrogen, N2(g), and water, H2O(g).
A gas sample was collected over water at 25.3 degrees Celsius, The total pressure is determined to be 0.97 atm. What is the partial pressure of the gas that was collected?
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