Question #0fbc0
1 Answer
The solution will have a molality of
Explanation:
Molality is defined as moles of solute, in your case urea, divided by kilograms of solvent, in your case water.
Notice that you were not given the mass of water, which means that you must use the given volume and water's density to determine how much solvent you have.
STP conditions correspond to a temperature of 273.15 K, or
Since the volume given to you is expressed in
This means that the mass of the solvent will be
To determine how many moles of urea you have, use its molar mass
Therefore, the solution's molality is
The answer is rounded to three sig figs, the number of sig figs you gave for the mass of urea.