In this problem we don't really have to do the conversion from mole to atom since a conversion factor from mass to atoms is already given. So we can simply do the calculation as:
1 mole of Si atoms contains 6.02 x 1023 atoms. 6.02 x 1023 atoms of Si have a mass of 28.1 g. How many atoms of Si are contained in a computer chip that masses 38.0 mg?
(6.02 x 1023 atoms 28.1 g)
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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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Based on our data, we think this problem is relevant for Professor Gilbert's class at TEMPLE.