You can identify a metal by carefully determining its density. A 29.51 g sample of an unknown metal is 1.50 cm long, 2.50 cm wide, and 1.00 cm thick. What is a possible identity of the element?
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Mass =29.51g
Volume =1.50×2.50×1.00
=3.75 cm3
Density =Mass /Volume
=29.51/3.75
=7.87g/cm3
From the density obtained, we can conclude that the metal is iron (Fe)
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