Which layer is likely to be on the bottom in

Question

each case?
a. Sodium chloride layer or a layer containing a high-density organic compound
dissolved in methylene chloride (d � 1.4 g/mL)
b. Sodium chloride layer or a layer containing a low-density organic compound
dissolved in methylene chloride (d � 1.1 g/mL)

Answer 1

High density sinks. Low density floats.