Final answer:
In 0.200 moles of carbon dioxide, there are 0.200 moles of carbon, since each molecule of carbon dioxide contains one atom of carbon.
Step-by-step explanation:
The student asked: How many moles of carbon (C) are in 0.200 moles of carbon dioxide (CO₂)? To answer this, we look at the composition of carbon dioxide, which consists of one carbon atom (C) and two oxygen atoms (O). Therefore, one mole of CO₂ contains exactly one mole of carbon. If a sample has 0.200 moles of carbon dioxide (CO₂), it contains 0.200 moles of carbon (C), since the number of moles of carbon is equal to the number of moles of CO₂. Converting moles to grams involves the molar mass of carbon, which is 12.011 g/mol.