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A solution is prepared from 30g of a non-volatile solute in 10 moles of water. The solution has a vapor pressure of 0.117 atm at 50 deg C. What is the molecular weight of the solute??? Note the vapor pressure of pure water at 50 deg C is 0.122 atm.
Some enzymes are produced as zymogens because a) the reactions they catalyze are undesirable at the site of production
The largest estimate for the amount of water on the moon is currently 1000parts per million (i.e 1000g water per 1000000g of salt). if the moon is made primarily of a pyroxene mineral with formula Fe2Si2O6 what is the "formula" of the hydrate with..
a 309 ml sample of unknown hcl solution reacts completely with na2co3 to form 10.1 g co2. what was the concentration of
solid calcium carbonate caco3 is able to remove sulphur dioxide from waste gases by the reactioncaco3 so2 other
Draw resonance structures for 9-(hydroxymethyl)anthracene. Is it possible for all three rings to simultaneously have bensenoid
What is the equilibrium partial pressure of NO in the air at 1000K if the partial pressure of nitrogen is 0.80bar, the partial pressure of oxygen is 0.20bar and delta G for the following reaction is 77.772kj/mole
An analysis had to be done in within and hour on a sample that clearly had a significant amount of water associated with it. Therefore, part of the sample was dried for an hour and part of the undried sample was assayed during the hour.
Write the structure of the product obtained when cyclohexane is used to decolorize bromine-containing solutions
The nuclear mass of 141Ba is 140.883 amu. Calculate the binding energy per nucleon for 141Ba.
Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25.
a student collects 31.8 mL of argon gas at a temperature of 21 Celsius and a pressure of 755 mmHg. What is the volume of argon at STP?
what is the minimum amount of 6.0 M H2SO4 necessary to produce 25.0 g of H2 according to the reaction between aluminum and sulfirc acid 2Al + 3H2SO4 ---> Al(SO4)3 + 3H2
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