What is the osmotic pressure of a solution containing 2 moles of glucose in 1 li

Practice Questions

Q1
What is the osmotic pressure of a solution containing 2 moles of glucose in 1 liter of solution at 25 °C? (R = 0.0821 L·atm/(K·mol)) (2020)
  1. 0.82 atm
  2. 1.64 atm
  3. 2.46 atm
  4. 4.92 atm

Questions & Step-by-Step Solutions

What is the osmotic pressure of a solution containing 2 moles of glucose in 1 liter of solution at 25 °C? (R = 0.0821 L·atm/(K·mol)) (2020)
  • 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) = 2 moles, R (gas constant) = 0.0821 L·atm/(K·mol), T (temperature in Kelvin) = 25 °C + 273 = 298 K, and V (volume in liters) = 1 L.
  • Step 3: Plug the values into the formula: π = (2 moles * 0.0821 L·atm/(K·mol) * 298 K) / 1 L.
  • Step 4: Calculate the numerator: 2 * 0.0821 * 298 = 49.0524.
  • Step 5: Since the volume is 1 L, the osmotic pressure is simply 49.0524 atm.
  • Step 6: Round the answer to two decimal places: π = 4.92 atm.
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