Question

A research company often disposes of used oil. In a lab, there is an open polycarbonate container (clear plastic) that contains oil on the floor next to a lab bench. A large unlabeled open container of an unknown fluid is on the lab bench near the open oil container. A researcher accidentally knocks the unknown fluid over and it seeps into the container of oil (S=0.86). The researcher notices that the unknown fluid does not mix with the oil, and it sinks to the bottom of the container. The researcher must properly dispose of this mixed waste, so the researcher must identify the unknown fluid by determining its specific weight. If the pressure at the bottom of the container is 4 psig, the depth of the unknown fluid is 3 ft, and the oil’s depth is 4.5 ft, what is the specific weight of the unknown fluid?

Answer 1