A shiny piece of metal is believed to be either platinum (valuable) or nickel (

Question

A shiny piece of metal is believed to be either platinum (valuable) or nickel ( not so valuable). If the piece has a mass of 156.485g and a volume of 7.31mL, calculate its density and decide which element it is made of. The density of Ni is 8.9g/mL, P.T. is 21.4g/mL A shiny piece of metal is believed to be either platinum (valuable) or nickel ( not so valuable). If the piece has a mass of 156.485g and a volume of 7.31mL, calculate its density and decide which element it is made of. The density of Ni is 8.9g/mL, P.T. is 21.4g/mL

Explanation / Answer

use,
density of metal = (mass of metal)/(volume of metal)
= (156.485/7.31) g/mL
= 21.4 g/mL

given, density of Pt is 21.4 g/mL
so, the metal is platinum

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