Equal masses of the four compounds below are each placed in liquid hexane (C₆H₁₄) at 25 °C:
• pentane, C₅H₁₂
• diethyl ether, C₂H₅OC₂H₅
• ethanol, C₂H₅OH
• sodium acetate, CH₃COONa
Which ranking correctly orders their solubilities in hexane from most soluble to least soluble?
a) ethanol > diethyl ether > pentane > sodium acetate
b) pentane > diethyl ether > ethanol > sodium acetate
c) diethyl ether > pentane > ethanol > sodium acetate
d) pentane > ethanol > diethyl ether > sodium acetate