Find the amount of CaCl2 dissolved …

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Find the amount of CaCl2 dissolved in 2.5L of water such that it's atmospheric pressure is 0.75 atm at 27° (Van't Hoff factor of CaCl2 =2.47)

Posted by Amol Gùpta 5 years, 9 months ago

CBSE > Class 12 > Chemistry

1 answers

Ritss ?? 5 years, 9 months ago

π=iCRT so i = 2.47 ; R = 0.0821 ; T= 273 +27 =300K ; π= 0.75 C= π÷iRT = 0.012 mol /litre C=no. Of solute / volume in litre ; no. Of solute = C ×volume of solution = 0.0308 Mass = no of solute × molecular mass of CaCl2 = 3.44gm

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