Answer:
0.32 grams
Explanation:
To go from moles to grams (I assume you meant mass instead of weight) you start by finding the molar mass. For O2, the molar mass is 32, because there are two oxygen atoms so 16 grams multiplied by 2.
After that, you take your given moles and multiply it by the grams per mole. The moles cancel each other out and you get your value in grams. I have attached my work below.
Hope this helps! :^)