Question

Ethanol, CH3CH2OH, is known as grain alcohol and is the alcohol found in alcoholic beverages. Calculate the mole fraction of ethanol in a solution that contains 4.76g of ethanol d

Answer 1

Step-by-step explanation:

To calculate the mole fraction of ethanol we need the number of moles of ethanol (n1) and the total number of moles of all solutes in the solution (n_total).

We know that molar mass of ethanol = 46.07 g/mol

First, we'll find the number of moles of ethanol:

n1 = mass / molar mass

n1 = 4.76 g / 46.07 g/mol

n1 = 0.1029 mol

Next, we'll find the total number of moles of all solutes in the solution:

n_total = n1

Finally, we'll use these values to find the mole fraction of ethanol:

mole fraction of ethanol = n1 / n_total

mole fraction of ethanol = 0.1029 mol / 0.1029 mol

mole fraction of ethanol = 1.00

Therefore, the mole fraction of ethanol in the solution is 1.00.