Final answer:
The formula for lead oxide (PO2) can be determined using the given information. 1 mole of lead combines with 1 mole of oxygen to form lead oxide.
Step-by-step explanation:
The formula for lead oxide (PO2) can be determined using the given information. The equation for the reaction is: Pb + O2 → PO2.
From the equation, we can see that 207 g of lead combines with oxygen to form 239 g of the lead oxide. The molar mass of lead (Pb) is 207 g/mol, and the molar mass of oxygen (O2) is 32 g/mol.
To find the formula of the lead oxide, we need to calculate the moles of lead and oxygen. Moles = mass / molar mass. For lead, moles = 207 g / 207 g/mol = 1 mol. For oxygen, moles = (239 g - 207 g) / 32 g/mol = 1 mol.
Therefore, the formula of the lead oxide (PO2) indicates that 1 mole of lead combines with 1 mole of oxygen to form lead oxide.