, 26.12.2019kaseyvn03

# Asolution is prepared by dissolving 4.78 g of an unknown nonelectrolyte in enough water to make 375 ml of solution. the osmotic pressure of the solution is 1.33 atm at 27c. what is the molar mass of the solute?

## Answers cantrelate

answer carbon and three oxygen atoms; katelyn0579
The answer options is d cpena583

The molar mass of the solute is 236.0 g/mol

Explanation:

To calculate the concentration of solute, we use the equation for osmotic pressure, which is: where, = osmotic pressure of the solution = 1.33 atm

i = Van't hoff factor = 1 (for non-electrolytes)

M = molarity of solute = ?

R = Gas constant = T = temperature of the solution = Putting values in above equation, we get: To calculate the molecular mass of solute, we use the equation used to calculate the molarity of solution: We are given:

Molarity of solution = 0.0540 M

Given mass of solute = 4.78 g

Volume of solution = 375 mL

Putting values in above equation, we get: Hence, the molar mass of the solute is 236.0 g/mol

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