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Answer :
A student weighs a sample of an unknown metal and finds the mass to be 40.15 g. He places 30.0 mL of water into a graduated cylinder. After he drops the metal into the graduated cylinder the volume increases to 35.5 mL. The density of the unknown metal sample is (e). 7.3 g/mL.
To determine the density of the unknown metal, follow these steps:
Calculate the volume of the metal:
35.5 mL - 30.0 mL = 5.5 mL.
Calculate the density using the formula density = mass/volume:
density = 40.15 g / 5.5 mL ≈ 7.3 g/mL.
The density of the unknown metal sample is 7.3 g/mL.
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