The "lead" in lead pencils is actually almost pure carbon, and the mass of a period mark made by a lead pencil is about 0.0001 g. How many carbon atoms are in the period?
Added by Scott K.
Step 1
First, we need to find out how many moles of carbon are in 0.0001 g of carbon. To do this, we'll use the molar mass of carbon, which is 12.01 g/mol. Show more…
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