Problem: A chemist weighed out 4.4 g of mercury. Calculate the number of moles of mercury she weighed out. Be sure your answer has the correct number of significant digits. 

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A chemist weighed out 4.4 g of mercury. Calculate the number of moles of mercury she weighed out. 

Be sure your answer has the correct number of significant digits. 

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