I was doing some problems from the textbook on converting between units using dimensional analysis and I came across this problem.
A vat of Hydrogen Peroxide ($\ce{H2O2}$) contains 455 grams of oxygen atoms. How many molecules of ($\ce{H2O2}$) are in the vat?
Sorry if I didn`t format the question correctly, I am a still a newbie. But how would I set this up? I would not like the answer to this question but I would like some input on how would I get how many molecules of hydrogen peroxide from grams of oxygen atoms? Any help would be much appreciated. Thanks in advance!