Calculate the osmotic pressure of each of the following aqueous solutions at 20.00°C:?
回答 (2)
2019-02-26 9:50 pm
1 mole of MgCl₂ dissociates in water to give 3 moles of ions (1 mole of Mg²⁺ and 2 moles of Cl⁻ ions.)
Hence, van't Hoff factor, i = 3
Molarity of the solution, M = 8.6 mM = 0.0086 mol/L
Gas constant, R = 0.08206 L atm / (mol K)
Temperature, T = (273.15 + 20.00) K = 293.15 K
Π = iMRT
Osmotic pressure, Π = 3 × 0.0086 × 0.08206 × 293.15 = 0.621 atm
Hence, van't Hoff factor, i = 3
Molarity of the solution, M = 8.6 mM = 0.0086 mol/L
Gas constant, R = 0.08206 L atm / (mol K)
Temperature, T = (273.15 + 20.00) K = 293.15 K
Π = iMRT
Osmotic pressure, Π = 3 × 0.0086 × 0.08206 × 293.15 = 0.621 atm
2019-02-26 9:38 pm
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收錄日期: 2021-05-01 22:29:46
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