The density of the unknown metal is 7.9g/mL and the unknown metal is iron.
HOW TO CALCULATE DENSITY OF A SUBSTANCE:
- The density of a substance is its mass in relation to volume. It can be calculated by dividing the mass of the substance by its volume. That is;
Density (g/mL) = mass (g) ÷ volume (L)
- According to this question, the mass of the unknown metal is 158 g and its volume is 20 mL, hence, its density can be calculated as follows:
Density = 158g ÷ 20mL
Density = 7.9g/mL
Therefore, the density of the unknown metal is 7.9g/mL
The unknown metal is IRON
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