What amount of CaCl2(i=2.47) is dissolved in 2L water so that its osmotic pressure is 0.5 atm at 27°C:-

(1) 13.42 g

(2) 19.24 g

(3) 8.834 g

(4) 1.820 g

Concept Videos :-

#9 | Osmosis & Osmotic Pressure

Concept Questions :-

Osmosis and Osmotic Pressure

π=iCRT=i×nV×RTn=π×Vi×R×T=0.5×22.47×0.0821×300=0.0164 molw=0.0164×111 g       =1.820 g

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