Answer:
5.05x10^24 molecules
Explanation:
1. Find the total mass of the compound
14 grams+32 grams= 46 grams per mole
2. Find the moles
385.55 g/ 46 g per mol= 8.38 moles
3. Multiply by Avogadro's Number (6.022 x 10^23)
8.38 moles x 6.022 x 10^23= 5.05x10^24 molecules
