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At 10^(@)C the osmotic pressure of a urea solution is 500mm. The solution is diluted and the temperature is raised to 25^(@)C, when the osmotic pressure is found to be 105.3mm. Determine the extent of dilution |
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Answer» SOLUTION :Suppose `V_(1)` litres of the solution CONTAINS n moles of the solute at `10^(@)C` which was DILUTED to `V_(2)` litres at `25^(@)C`. Thus we have, `{:(,,(500)/(760)=(n)/(V_(1))xx0.082xx283),("and",,(105.3)/(760)=(n)/(V_(2))xx0.082xx298):}` Dividing (1) by (2), we get `(V_(2))/(V_(1))=5` Thus the solution was diluted 5 times |
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