In a liquid-liquid separation using water and dichloromethane, dichloromethane will be the bottom layer.Group of answer choicesTrueFalse

In a liquid-liquid separation system involving water and dichloromethane (DCM), the density of each liquid plays a crucial role in determining which layer will be at the top and which will be at the bottom.

Analysis

1. Density of Water: The density of water is approximately 1.0 g/cm³ (or 1000 kg/m³).
2. Density of Dichloromethane: The density of dichloromethane is around 1.33 g/cm³ (or 1330 kg/m³), making it denser than water.

Conclusion

Since dichloromethane is denser than water, it will settle at the bottom of the separation container when both liquids are mixed. Therefore, the dichloromethane will indeed form the bottom layer, while water will be on top.

Final Answer

True: Dichloromethane will be the bottom layer in a liquid-liquid separation involving water.