Question

How do I calculate mole fraction of glucose in a solution?

Answer 1

Hint: The mole fraction is defined as the amount of constituent expressed in moles divided by the total amount of constituent present in the solution expressed in moles. The ole fraction is also known as amount fraction.

Complete step by step answer:
For calculating the mole fraction of glucose, the number of moles of glucose and the number of moles of solvent should be known, for that it is important that the value for mass of the glucose and the mass of solvent which is used should be provided. Here glucose is the solute which is dissolved in a solvent to form a solution.
The solute is defined as the compound which is dissolved in the solvent and the solvent is the compound in which the solute is added. The solute and solvent combine to form a solution.
To calculate the number of moles of solute and solvent, the mass of the compound is divided by the molecular weight of the compound.
The formula to calculate the number of moles is shown below.
$n = \dfrac{m}{M}$
Where,
n is the number of moles
m is the mass
M is the molecular weight
After getting the moles of the glucose and the solvent using the above formula, the mole fraction can be calculated.
The mole fraction is calculated by dividing the number of moles of solute by the total mole of the solution (Solute + solvent).
The mole fraction of glucose is calculated by the formula as shown below.
${X_{glu\cos e}} = \dfrac{{{n_{glu\cos e}}}}{{{n_{total}}}}$
Where,
${X_{glu\cos e}}$ is the mole fraction of glucose
${n_{glu\cos e}}$ is the number of moles of glucose
${n_{total}}$ is the total moles present in the solution.
So by using the above formula, the mole fraction of the glucose can be calculated.

Note: You must note that in the given question no value is given so only the formula shown is applied to calculate the mole fraction of glucose when the value is given.