A piece of metal weighing 923 g has a volume of 130 cm3. What is this metal?
| February 11, 2021 | education
In order to determine which metal is specified, it is necessary to calculate its density and find the specified substance from the density table.
ρ = m / V, where m is a given mass of a piece of metal (m = 923 g), V is a given volume of a piece of metal (V = 130 cm3).
Let’s calculate:
ρ = m / V = 923/130 = 7.1 g / cm3.
The density of 7.1 g / cm3 will be 7100 kg / m3 (1 kg = 1000 g, 1 m3 = 10-6 cm3). The calculated density of the substance corresponds to zinc.
Answer: Metal is zinc.
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