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At 210°C, a solution of 18.26 g of a nonvolatile, nonpolar compound in 33.25 g of ethyl bromide, C2H5Br, had a vapor pressure of 336.0 torr. The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Use Raoult's law to determine the molar mass of the compound.
Draw the accepted mechanism for each reaction and illustrate how each stereoisomer is formed in the reaction.
The ionization energy of hydrogen is reported to be 1.31x10^6 J mol^-1 of H. (1) compute the ionization energy for a single atom of hydrogen.
An electron has an uncertainty in its position of 594pm . What is the uncertainty in its velocity?
It is estimated that about 0.02 m3 of pyrite (density 5 g/cm3) has "disappeared" from a rock face that is adjacent to a lake (original pH=6.7) with dimensions 100 m x 40 m x 10 m.
Assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the calorimeter. (density of water = 1.00 g/ mL , specific heat capacity = 4.18 J g-1 K-1)
For the equilibrium H2(g)+ CO2 (g) H20 (g) + CO(g) Kc = 3.18 at 1106K. If each of the four species was initially present at a concentration of 3.000M, calculate the equilibrium concentration of the CO(g) at this temperature
Which intermolecular force or bond is responsible for the high boiling point of NH3 relative to PH3 and AsH3? a. hydrogen bonding
Pure chlorobenzene boils at 404.86 K. (a) Construct the chlorobenzene-rich portion of the phase diagram from the data. (b) Estimate the temperature at which a solution whose mole fraction of 1-butanol is 0.300 begins to boil
TCE is added to the aqueous phase so that initally it has an aqueous phase concentration of 100 ppb. After the system equilibrates, what will be the concentration of TCE in the aqueous phase
what mass of this substance must evaporate in order to freeze 230g of water initially at 16 degrees? the heat of fusion
1. which pair of esters is most likely to provide a useful claisen synthesis.2. which is the major product formed in
find the molarity of an unknown NaOH solution if 0.5536 g of the KHP required 37.00 mL of a NaOH solution.
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