Answer:
0.1626
Step-by-step explanation:
To determine the number of moles present in 9.8 x 10^22 atoms of K (potassium), we need to use Avogadro's number. Avogadro's number is a constant that represents the number of atoms or molecules in one mole of a substance, and it is approximately 6.022 x 10^23 particles per mole.
Here's how we can calculate the number of moles:
1. Identify the given information: 9.8 x 10^22 atoms of K.
2. Divide the given number of atoms by Avogadro's number: (9.8 x 10^22) / (6.022 x 10^23).
3. Perform the division: 9.8 x 10^22 / 6.022 x 10^23 ≈ 0.1626.