Unknown A has been placed on the balance and record its mass. 2) The graduated cylinder is about half full and note its volume. 3) Sample A has been dropped into the graduated cylinder and note that water is displaced and the level rises. Subtract the original volume of water from this second reading and record it as the volume of sample A. 4) You are finished with sample A now it has been into the hydrometer jar found to the right in diagrams below. 5) Repeat this same procedure (1-4) for samples B, C and D. 6) Calculate the density of each of the samples. Determine the range of density that the oil in level 3 has, in the hydrometer.
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