When 150 Cm³ of Benzene, C₆H₆, Is Added to 125 Cm³

question 1

Multiple Choice

When 15.0 cm³ of benzene, C₆H₆, is added to 125 cm³ of water, H₂O, at 20°C, the final volume of the liquid mixture is 137 cm³. Calculate the partial molar volume of benzene in dilute aqueous solutions given that the density of benzene and of water are 0.879 g cm^-3 and 0.998 g cm^-3 respectively, and the partial molar volume of water is 17.8 cm³ mol^-1 at this temperature.

• A) 88.9 cm³ mol^-1
• B) 81.8 cm³ mol^-1
• C) 14.6 cm³ mol^-1
• D) 86.8 cm³ mol^-1

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