Answer:
Hi, try following the steps on the explanation on all your questions :) it's easy.
Step-by-step explanation:
To determine the number of atoms in 0.85 moles of Sodium (Na), we need to use Avogadro's number, which is 6.022 x 10^23 particles per mole.
Number of atoms = moles x Avogadro's number
Number of atoms = 0.85 mol x 6.022 x 10^23 particles/mol
Number of atoms = 5.12 x 10^23 atoms
Therefore, there are approximately 5.12 x 10^23 atoms in 0.85 moles of Sodium (Na).