Final answer:
To find the number of atoms in 2.9 mol of carbon, multiply 2.9 by Avogadro's number, resulting in approximately 1.74638 × 10²´ atoms.
Step-by-step explanation:
The question asks how many atoms are in 2.9 mol of carbon. To answer this, we leverage the concept that one mole of any substance contains Avogadro's number of particles, which is 6.022 × 10²³ atoms. Therefore, we can calculate the number of atoms in 2.9 mol of carbon by multiplying 2.9 by Avogadro's number:
Number of atoms = 2.9 mol × 6.022 × 10²³ atoms/mol
This gives us:
Number of atoms = 17.4638 × 10²³ atoms
Therefore, there are approximately 1.74638 × 10²´ atoms in 2.9 mol of carbon.