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Part A. In a sample of 91.71 g of nitrogen, how many moles of nitrogen will...

Part A. In a sample of 91.71 g of nitrogen, how many moles of nitrogen will be present?

In the same sample of nitrogen, how many atoms of nitrogen will be present?

Part B. How many atoms are there in 2.55 moles of strontium (Sr)

Part C. How many moles of carbon does 2.97E+24 atoms of carbon represent?

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