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An unknown metal has a density of 4.54 g/mL. What is the mass of 8.39 mL of the unknown metal? 3.81 g 785 g 78.5 g 38.1 g none of these

Answer :

The mass of 8.39 mL of the unknown metal is 38.1 g.Density is defined as mass divided by volume. To find the mass of the unknown metal, we can multiply its density by the given volume.

Given:

Density = 4.54 g/mL

Volume = 8.39 mL

To calculate the mass, we can use the formula:

Mass = Density x Volume

Substituting the given values:

Mass = 4.54 g/mL x 8.39 mL

Performing the calculation:

Mass = 38.0706 g

Rounding to the appropriate number of significant figures, we find that the mass of 8.39 mL of the unknown metal is approximately 38.1 g. Therefore, the correct answer is 38.1 g.

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