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(C) The osmotic pressure $(OP)$ of a solution can be calculated using the formula $OP = CRT$, where $C$ is the molar concentration, $R$ is the gas con

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$22.4$ atmosphere

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(C) The osmotic pressure $(OP)$ of a solution can be calculated using the formula $OP = CRT$, where $C$ is the molar concentration, $R$ is the gas constant $(0.0821 \, L \, atm \, K^{-1} \, mol^{-1})$, and $T$ is the absolute temperature in Kelvin.For a $1 \, M$ (molar) solution at $0^o C$ $(273 \, K)$:$OP = 1 \, mol/L 	imes 0.0821 \, L \, atm \, K^{-1} \, mol^{-1} 	imes 273 \, K \approx 22.4 \, 	ext{atmospheres}$.Therefore, an ideal molar solution at $0^o C$ exerts an osmotic pressure of approximately $22.4 \, 	ext{atmospheres}$.

An ideal molar solution at $0^o C$ will have an osmotic pressure of

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