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TS EAMCET · Chemistry · Solid State

How many grams of glucose are required to prepare an aqueous solution of glucose having a vapor pressure of 23.324 mm Hg at 25°C in 100 g of water? The vapour pressure of pure water at 25°C is 23.8 mm Hg.

  1. A 20.4
  2. B 10.3
  3. C 5.4
  4. D 7.4
Verified Solution

Answer & Solution

Correct Answer

(A) 20.4

Step-by-step Solution

Detailed explanation

By Raoult's law, Psolvent0-PsolventPsolvent0=Xsolute=nsolutensolute+nsolvent......(1) nglucose=MassglucoseMolar Massglucose=x180 nwater=MasswaterMolar Masswater=10018=5.55 So,…