Taking into account the definition of density, the metal with a volume of 12.3 mL and a mass of 96.7 g is iron.
Definition of density
Density is defined as the property of matter, whether solid, liquid, or gas, that allows the amount of mass in a given volume of a substance to be measured.
The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:
density= mass÷ volume
Density in this case
In this case, you know that:
- Mass= 96.7 g
- Volume= 12.3 mL= 12.3 cm³ (being 1 mL= 1 cm³)
Replacing in the definition of density:
density= 96.7 g÷ 12.3 cm³
Solving:
density= 7.86 g/cm³
On the other hand, you know that the densities of zinc, chromium and iron are 7.89, 7.20 and 7.86 g/cm³, respectively.
Finally, the metal with a volume of 12.3 mL and a mass of 96.7 g is iron.
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