What is the osmotic pressure of a solution containing 0.5 moles of solute in 1 l

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Question: What is the osmotic pressure of a solution containing 0.5 moles of solute in 1 liter of solution at 25 °C? (2021)

Options:

Correct Answer: 24.6 atm

Exam Year: 2021

Solution:

Osmotic pressure (π) = nRT/V = (0.5 moles)(0.0821 L·atm/(K·mol))(298 K) = 12.3 atm.

What is the osmotic pressure of a solution containing 0.5 moles of solute in 1 liter of solution at 25 °C? (2021)

What is the osmotic pressure of a solution containing 0.5 moles of solute in 1 liter of solution at 25 °C? (2021)

Step 1: Identify the formula for osmotic pressure, which is π = nRT/V.
Step 2: Determine the values needed for the formula: n (number of moles of solute) = 0.5 moles, R (ideal gas constant) = 0.0821 L·atm/(K·mol), T (temperature in Kelvin) = 25 °C + 273 = 298 K, and V (volume of solution) = 1 liter.
Step 3: Plug the values into the formula: π = (0.5 moles) * (0.0821 L·atm/(K·mol)) * (298 K) / (1 L).
Step 4: Calculate the result: π = (0.5 * 0.0821 * 298) = 12.3 atm.

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