Final answer:
To find the molarity of an ethylene glycol solution, calculate the number of moles of ethylene glycol using its mass and molar mass, then divide by the volume of the solution converted from mass using the density.
Step-by-step explanation:
To determine the concentration in molarity of an aqueous solution containing ethylene glycol, we first need to calculate the number of moles of ethylene glycol. The molar mass of ethylene glycol (C₂H₄(OH)₂) is given as 62.07 g/mol. Let's assume 'y' is the mass of ethylene glycol in grams, so the number of moles would be the mass 'y' divided by the molar mass of 62.07 g/mol.
Once we have the moles of ethylene glycol, we can find out the volume of the solution using the density. Since the density is 1.04 g/mL, we can convert the mass of the solution to the volume by dividing the mass by the density.
The formula for molarity (M) is the number of moles of solute (n) divided by the volume of the solution in liters (V). Molarity (M) can be calculated as:
M = n / V
Where n is the moles of ethylene glycol and V is the volume of the solution in liters. To get V, we can use the total mass of the solution (mass of ethylene glycol plus mass of water) divided by the solution's density. We can then convert this volume from milliliters to liters. Finally, we use the calculated moles of ethylene glycol and the volume of the solution in liters to determine the molarity of the solution.