The vapor pressure of diethyl ether is 400 mm at 291 K. Its normal boiling point

Question

The vapor pressure of diethyl ether is 400 mm at 291 K. Its normal boiling point is 307.6 k, what is the vapor pressure of diethyl ether at its normal boiling point? 760 mm 400 mm 307.6 mm 291 mm _____________ A 30%(w/w) solution of ammonium chloride in water forms a saturated solution at a temperature of 33 degree C. The solubility process is strongly endothermic. From this information, which of the following statements would most likely be TRUE? To prepare a saturated solution of ammonium chloride, at 33 degree C, add 30 grams of the compound to 100 grams of water Warming the solution to 45 degree C would produce an unsaturated solution Because the solution process is endothermic, the freezing point of the solution would be higher than the freezing point of pure water A supersaturated solution could be prepared by adding more solute to the solution at 33 degree C

Explanation / Answer

4]

For any solution at normal boiling point temperaute ....vapoure pressure is equal to the atmospheric pressure

= 760 mm

5]

So asnwer is b

Warming the solution to 45C produces an unsatured solution

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