1.

What is the osomotic pressure of a "0.0020 mol dm"^(-3) sucrose (C_(12)H_(22)O_(11)) solution at 20^(@)C? (Molar gas constant, R ="8.314 JK"^(-1)"mol"^(-1))

Answer»

4870 Pa
4.87 Pa
0.00487 Pa
0.33 Pa

Solution :`pi-CRT`
`C="0.002 MOL DM"^(-3)="2 mol m"^(-3)`
`R=8.314JK^(-1)"mol"^(-1),T=293K`
`pi=2xx8.314xx293=4872Pa`.


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