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Toluene is a liquid compound similar to benzene. Calculate the mole fraction of Toluene in a solution that contains 112 g TOluene and 221 g Benzene.
Find the mass of 2 moles of phosphorus trichloride.
How many grams of sodium benzoate should be added to prepare the buffer? Neglect the small volume change that occurs when the sodium benzoate is added
What is the structure for the indole that would be obtained from the phenylhydrazone
A sample of an unknown gas effuses in 10.5 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.07 min. What is the molar mass of the unknown gas?
Suppose Joule encountered the waterfall at Niagara Falls. Calculate the height if the temperature difference between the top and bottom of the waterfall is 0.20° F.
Draw a sketch, roughly to scale, of the potential energy diagram for a system in which Ea= +80kJ and ?H= -20kJ. Label the axes, reactants
At what temperature would the rms speed of H2molecule be same?
For a reaction of hydrogen with iodine, the rate constant is 2.45*10^-4 L mol-1 s-1 at 302 C and 0.950 L Mol-1 s-1 at 508 C.
What is the origin of the charge neutrality requirement in solids? Why must solids have charge neutrality in the bulk,
Suppose that a car's starter motor draws 223 A of current for 6.0 s to start the car. What mass of Pb is oxidized in the lead-acid battery to supply this much electricity
What is the purpose of grinding the magnesium before introducing it into the reaction flask?
Assuming that the total pressure of the gases is 1.52 and that their mole ratio is 94 : 4.0 : 1.5 : 0.50, calculate the partial pressure (in atmospheres) of each gas.
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