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An unknown substance has a volume of 2 cm\(^3\) and a mass of 38.6 grams. What is the density of the sample?

1) 1.0
2) 2.7
3) 7.9
4) 10.5
5) 19.3

Answer :

Final answer:

The density of the unknown substance is 19.3 g/cm³.

Explanation:

The density of a substance is calculated by dividing its mass by its volume. In this case, the unknown substance has a volume of 2 cm³ and a mass of 38.6 grams.

Density = mass/volume

Density = 38.6 g / 2 cm³

Density = 19.3 g/cm³

Therefore, the density of the sample is 19.3 g/cm³.

To calculate density, you need to know the mass and volume of the substance. It's important to be consistent with units when performing calculations to ensure accurate results.

The standard unit for density in the International System of Units (SI) is kilograms per cubic meter (kg/m³). However, in many everyday situations, other units like grams per cubic centimeter (g/cm³) or kilograms per liter (kg/L) may be used.

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Rewritten by : Barada

Final answer:

The density of the unknown substance is 19.3 g/cm³. The answer is option 5.

Explanation:

To find the density of the substance, we can use the formula:

Density = mass/volume

Given that the volume is 2 cm³ and the mass is 38.6 grams, we can substitute these values into the formula:

Density = 38.6 g/2 cm³

Simplifying the calculation, we get:

Density = 19.3 g/cm³

Therefore, the density of the sample is 19.3 g/cm³ (option 5).

Learn more about density here:

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