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A solution is prepared by adding 35.5 mL of ethylene glycol, C2H6O2, to 250.0g of water. What is the freezing point of this solution? The Kf for water is 1.86 C/m and the density of ethylese glycol is 1.1135 g/mL. Consider if the solute is an electrolyte or a non electrolyte.
Construct the MO diagram for planar BH3 and for pyramidal BH3. Based on your MO diagram , why is BH3 planar?
Provide the proper IUPAC name for the alkenes shown below. CH2=CHCH2CH2CH2CH3. Choose your answere from the following (a) A hex-1-ene (b) hex-2-ene (c) hex-3-ene
The combustion of .1703 mole of hydrocarbon produces 12.27g H2O and 22.48g CO2. What is the molar mass of the hydrocarbon?
The Ksp of barium fluoride is 1.0 x 10^-6. The Ksp of calcium fluoride is 3.9 x 10^-11. What is the remaining concentration of the first ion to precipitate when the second ion begins to precipitate?
determine the solubility of CO2 in soda water at 25 degreeC if the pressure of CO2 is 5.2 atm
1.56 g of a gas dissolves in 2.00 L of water at a pressure of 1.75 atm. At what pressure will 2.00 g of the gas dissolve in 2.00 L of water if the temperature remains constant?
if you have 430.00 ml of water at 25.00 degrees celcius.and add 100 ml of water at 95.00 degrees celcius, what is the final temperature of the mixture?
When 56.0 g calcium and 34.7 g nitrogen gas undergo a reaction that has a 88.0% yield, what mass of calcium nitride forms?
Titration of the lead and zinc in this aliquot required 34.06 mL of the EDTA solution. Finally, cyanide was used to mask the copper and the zinc in a 25.00 mL aliquot. Titration of the lead required 26.68 mL of the EDTA solution. Determine the com..
Many important drugs contain the amine functional group, which makes them basic. Many drugs also contain an amide group, which is effectively neutral. Suggest a way to separate ephedrine, a stimulant and decongestant drug shown below, from phenace..
it is sometimes doped to form an n-type semiconductor. Explain the difference between an intrinsic and an n-type semiconductor. Suggest an element that might be added to germanium to create the n-type semiconductor.
Calculate the standard reaction enthalpy for the formation of boron trifluoride, which is widely used in the chemical industry:B2O3(s) + 3CaF2(s) > 2BF3(g) + 3CaO(s).
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