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1.7920 gm K(2)SO(4) is present in 1000 m...

1.7920 gm `K_(2)SO_(4)` is present in 1000 mL of solution. If such solution have osmotic pressure of 0.680 bar at `26^(@)C` then find out van't Hoff factor value.

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The correct Answer is:
`2.66`
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