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10g of an organic substance when dissolved in two litres of water gave an osmotic pressure of 0.59 atm, at 7^(@)C. Calculate the molecular weight of the substance. |
Answer» <html><body><p></p>Solution :`<a href="https://interviewquestions.tuteehub.com/tag/pi-600185" style="font-weight:bold;" target="_blank" title="Click to know more about PI">PI</a>=("<a href="https://interviewquestions.tuteehub.com/tag/moles-1100459" style="font-weight:bold;" target="_blank" title="Click to know more about MOLES">MOLES</a> of solute")/("<a href="https://interviewquestions.tuteehub.com/tag/litres-1075876" style="font-weight:bold;" target="_blank" title="Click to know more about LITRES">LITRES</a> of solution")xxRT` <br/> `0.59=(10xx0.082xx280)/(Mxx2)` <br/> `M=(10xx0.82xx280)/(2xx0.59)="194.6 g/mol"` <br/> `"Molecular <a href="https://interviewquestions.tuteehub.com/tag/weight-1451304" style="font-weight:bold;" target="_blank" title="Click to know more about WEIGHT">WEIGHT</a> = 194.6 g/mole"`</body></html> | |