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Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. at 25 degrees Celsius, the vapor pressure of pure benzene is 100.84 torr. what is the vapor pressure of a solution made from dissolving 10.1 g of biphenyl in 28.5 g of benzene?
the temperature of a sample of helium at 85 kpa is 37 degrees celsius. if the volume of the gas remains constant at
A 250-L tank is evacuated and connected to a 50.0-L bulb filled with compressed argon. After they are joined, the pressure in the bulb falls to 2.20 atm.
the suspended solid content of a 1-litre river water sample is 20 mglitre. assume that material all organic carbon and
If a given element has a mass that is 5.81 times that oc 12 C how do I figure out the mass and the element. Do I just times 5.81 times 12.0107? Therefore it is Ga
Not enough sodium hydroxide was added, so the solution was still acidic when the beaker was heated to convert the copper(II) hydroxide to copper(II) oxide.
Which of the following is the best reason as to why increasing the NaCl concentration increases the temperature at which the two strands of DNA "melt" apart
What is the pH of a solution containing 0.001 M NaHCO3 and 0.002 M NH3? You may assume that both the carbonic acid system
Calculate the pH of a buffer solution obtained by mixing 400.0 mL of 0.200 M acetic acid solution and 100.0 mL of a 0.300 M sodium hydroxide solution.(The pKa of Acitic Acid, CH3OOH is 4.74)
The distance between layers in a crystal is 323 pm. X rays are diffracted from these layers at an angle of 13.1°. Assuming that n = 3, calculate the wavelength of the X rays in nm.
For the reaction shown, compute the theoretical yield of product (in grams) for each of the following initial amounts of reactants. 2Al(s) + 3Cl2(g) --> 2AlCl3 (s)
What is the empirical formula of a hydrocarbon if complete combustion or 1.900 mg of the hydrocarbon produced 6.423 mg of CO2 and 1.315 mg of H2O? Be sure to write C first in the formula.
So what have we discovered? What is the elemental identity? Show work in detail please. Displacement - 0.00202 L
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