Final answer:
The mole fraction of the sugar in the solution can be calculated by subtracting the mole fraction of water from 1.
Step-by-step explanation:
In a solution, the mole fraction of a substance is the ratio of the moles of that substance to the total moles of all substances present in the solution.
In this case, the mole fraction of water is 0.942. Therefore, the mole fraction of the sugar can be calculated by subtracting the mole fraction of water from 1:
Mole fraction of sugar = 1 - mole fraction of water
Mole fraction of sugar = 1 - 0.942
Mole fraction of sugar = 0.058