Determine the osmotic pressure at 25 °C of an aqueous solution that is 0.028 M NaNO₃. A) 1.37 atm B) 0.685 atm C) 0.0729 atm D) 0.0364 atm E) 2.06 atm

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Quizplus · Accepted Answer

The osmotic pressure (π) can be calculated using the formula π = iMRT, where i is the van't Hoff factor (2 for NaNO3), M is the molarity (0.028 M), R is the ideal gas constant (0.0821 L·atm/mol·K), and T is the temperature in Kelvin (298 K for 25 °C). Calculating gives π = 2 * 0.028 * 0.0821 * 298 = 1.37 atm.

Determine the Osmotic Pressure at 25 °C of an Aqueous