Answer:
Step-by-step explanation:
To determine the number of moles of magnesium oxide in 8.25 x 10^24 molecules, we first need to know the molecular formula of magnesium oxide. Magnesium oxide has a chemical formula of MgO, which means it consists of one magnesium atom (Mg) and one oxygen atom (O).
To convert the number of molecules to moles, we need to use Avogadro's number, which is 6.022 x 10^23 molecules per mole. Therefore, we can calculate the number of moles of magnesium oxide as follows:
Number of moles = Number of molecules / Avogadro's number
Number of moles = 8.25 x 10^24 molecules / 6.022 x 10^23 molecules per mole
Number of moles = 13.7 moles
Therefore, there are 13.7 moles of magnesium oxide in 8.25 x 10^24 molecules.