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The vapour pressure of water at 20^ C is 17.5 ~mm Hg . If 18 ~g of glucose ( C ₆ H ₁₂ O ₆ ) is added to 178.2 ~g of water at 20^ C , the vapour pressure of the resulting solution will be

Options

  1. A17.675 ~mm Hg
  2. B15.750 ~mm Hg
  3. C16.500 ~mm Hg
  4. D17.325 ~mm Hg

Correct answer

D. 17.325 ~mm Hg

Step-by-step solution

aligned & P^0-P_s P_s =X_ solute & 17.5-P_s P_s = 0.1 10 & 17.5-P_s P_s =0.01 & P_s=17.325 ~mm Hg aligned

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