How many moles are in a sample of cobalt containing 5.0x10^23 atoms?
divide it by avagradro's number.
To determine the number of moles in a sample, you can use Avogadro's number, which is approximately 6.022 x 10^23. Avogadro's number represents the number of atoms or molecules in one mole of a substance.
Given that the sample contains 5.0x10^23 atoms of cobalt, we can divide this number by Avogadro's number to find the number of moles.
Number of moles = Number of atoms / Avogadro's number
Number of moles = (5.0 x 10^23 atoms) / (6.022 x 10^23 atoms/mol)
After performing the calculation, we get:
Number of moles ≈ 0.831 moles
Therefore, there are approximately 0.831 moles in a sample of cobalt containing 5.0x10^23 atoms.