Final answer:
To find the grams of oxygen in a compound, multiply the total mass of the compound by the percentage of oxygen. Using an example where oxygen makes up 54.5% of the compound's mass, 450 grams of this compound would contain 245.25 grams of oxygen.
Step-by-step explanation:
To determine how many grams of oxygen a compound contains, we need specific information about the composition of the compound. However, you provided different scenarios with different compositions of oxygen and other elements in various compounds. For simplicity, let's use the arbitrary example where 100 grams of a compound contains 54.50 grams of oxygen as presented in one of the examples above. In this case, the compound is composed of 54.5% oxygen by mass.
If we have 450 grams of this compound, we can calculate the mass of oxygen by multiplying the total mass of the compound by the percentage of oxygen it contains:
450 grams × 54.5% = 245.25 grams of oxygen
While this calculation is based on the arbitrary example, the actual composition of the compound in question would be needed to give a precise answer. Without the specific composition, we cannot definitively choose one of the provided options (a, b, c, d).