A density of 1.5 g cm-3 is equivalent to 1500 g L-1, as clarified through calculations involving volume conversions. The discussion highlights the importance of understanding the difference between cubic centimeters and linear centimeters when performing density conversions. Participants corrected misconceptions about dimensional analysis and provided insights into the correct interpretation of units. The conversation emphasizes the significance of accurate mathematical assumptions in deriving correct answers. Overall, the correct equivalence of 1.5 g cm-3 is established as 1500 g L-1.