**We are asked ****to ****calculate the surface area of a 35 mg sample of a material with a density of 0.20 g/cm ^{3} and that its surface area is 1242 m^{2} per gram.**

**In order for us to solve this problem, we shall follow these steps:**

*Step 1*: Convert the mass of the sample to grams.

*Step 2*: Multiply the mass of the sample in grams with that of the surface area per gram.

In 2009, a team from Northwestern University and Western Washington University reported the preparation of a new "spongy" material composed of nickel, molybdenum, and sulfur that excels at removing mercury from water. The density of this new material is 0.20 g/cm^{3}, and its surface area is 1242 m^{2} per gram of material.

Calculate the surface area for a 35.0 -mg sample of this material.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Dimensional Analysis concept. You can view video lessons to learn Dimensional Analysis. Or if you need more Dimensional Analysis practice, you can also practice Dimensional Analysis practice problems.

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