Solution: A solution is prepared by mixing 25 mL pentane (C5H12, d = 0.63 g/cm3) with 45 mL hexane (C6H14, d = 0.66 g/cm3). Assuming that the volumes add on mixing, calculate the mass percent, mole fraction, mo

A solution is prepared by mixing 25 mL pentane (C₅H₁₂, d = 0.63 g/cm³) with 45 mL hexane (C₆H₁₄, d = 0.66 g/cm³). Assuming that the volumes add on mixing, calculate the mass percent, mole fraction, molality, and molarity of the pentane.