# The density of iron is 7.87 g/mL. What is the mass of a 2.00cm x 4.00cm x 1.00cm block of iron?

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Volume of the block of iron
= (2.00 × 4.00 × 1.00) cm³
Density of the block
= 7.87 g/ml
= 7.87 g/cm³
Mass of the iron block
= Volume × Density
= [(2.00 × 4.00 × 1.00) cm³] × (7.87 g/cm³)
= 63.0 g (to 3 sig. fig.)

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# The density of iron is 7.87 g/mL. What is the mass of a 2.00cm x 4.00cm x 1.00cm block of iron?

The mass of a 2.00cm x 4.00cm x 1.00cm block of iron is 15.74g.

## The density of iron is 7.87 g/mL

The mass of a block of iron can be calculated using the density and the dimensions of the block.

To calculate the mass, you will need to know the density of iron, which is 7.87 g/mL. You will also need to know the dimensions of the block.

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If the block is .cm x .cm x .cm, then the mass of the block would be 7.87 g/.cm/.cm/.cm, or 7.87 grams.

## The mass of a 2.00cm x 4.00cm x 1.00cm block of iron is 31.48 grams

The density of iron is 7.87 g/mL. This means that for every mL of iron, there are 7.87 grams of iron.

In order to find the mass of a block of iron, we need to calculate the volume of the block first.

The volume of a rectangular prism can be calculated by multiplying the length x width x height. In this case, the dimensions are 2.00cm x 4.00cm x 1.00cm. This gives us a volume of 8.00 cm3.

Now that we know the volume, we can multiply it by the density to find the mass. 8.00 cm3 x 7.87 g/mL = 63.16 grams. Therefore, the mass of the block of iron is 63.16 grams.