Ok I'm really confused on the question I asked how many CO2 molecules can be made with 0.500 mol of oxygen atoms. Please help with setting this up

I looked below at my first response and your follow up. What you've REALLY asked is "Will you work it for me?" and the answer is no but I can rephrase what I wrote. If you still don't understand, explain very explicitly what you don't understand and we can go from there.

You have 1/2 mole O atoms. It takes two O atoms to make 1 molecule of CO2. So (1/2)/2 = 0.25 moles CO2 can be prepared. There are 6.022E23 molecules in 1 mole so how many are in 0.25 moles? Don't confuse the word "mole" with the word "molecules."

I don't want the answer. Do I have to account for the molar mass of CO2 and O2.

Sure! To determine the number of CO2 molecules that can be made with 0.500 mol of oxygen atoms, we need to use the balanced chemical equation for the formation of CO2:

2 C + O2 → 2 CO2

The balanced equation tells us that for every one molecule of O2, two molecules of CO2 are produced. We also know that 0.500 mol of oxygen atoms are given.

To set up the calculation, we can follow these steps:

Step 1: Determine the number of oxygen molecules present in 0.500 mol of oxygen atoms:
Since the molar mass of oxygen (O2) is 32 g/mol, we divide 0.500 mol by the molar mass to find the number of oxygen molecules. This can be calculated as follows:

Number of oxygen molecules = (0.500 mol) / (32 g/mol) * (6.022 x 10^23 molecules/mol)

Note: The Avogadro's number, 6.022 x 10^23 molecules/mol, represents the number of particles (atoms or molecules) in one mole of a substance.

Step 2: Calculate the number of CO2 molecules produced from the number of oxygen molecules:
Since the balanced equation states that 2 molecules of CO2 are produced for every 1 molecule of O2, we can multiply the number of oxygen molecules by a factor of 2 to find the number of CO2 molecules.

Number of CO2 molecules = (Number of oxygen molecules) * 2

By following these steps, you can set up the calculation and determine the number of CO2 molecules that can be made with 0.500 mol of oxygen atoms.