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A student determines the density of an irregularly shaped block of lead in the laboratory. The displacement volume measured 25.2 mL using a graduated cylinder. The mass on the electric balance reads 285.768 g. What is the density of lead reporting to the appropriate number of significant figures allotted by the equipment used?

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Eduard22sly

The density of the block of lead is 11.34 g/mL

The density of an object is defined as mass per unit volume of the object i.e

Density = mass / volume

With the above formula, we can obtain the density of the block of lead as illustrated below:

Volume of lead = 25.2 mL

Mass of lead = 285.768 g.

Density of lead =?

Density = mass / volume

Density = 285.768 / 25.2

Density of lead = 11.34 g/mL

Therefore, the density of the block of lead is 11.34 g/mL

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