1. The problem statement, all variables and given/known data Given a table of percentages. One column stands for the percent of Nitrogen in a substance, the other a percent of Oxygen. Given the table (4 rows with different values), figure out the ratio of atoms of Oxygen for a given amount of Nitrogen. 2. Relevant equations 3. The attempt at a solution I have no idea how to even go about doing it. I tried plugging in the weights of the elements, i tried ignoring them. I tried this problem a few different ways but honestly, i haven no idea how to even approach it, i cant seem to figure it out. It's from the first chapter of our chemistry book, i've tried reading the book, but they dont mention nor show a sample of how to do a problem like this. Nor did the professor do a sample problem in class. I have no idea how to approach this problem, i know it's a simple solution but i havent taken chemistry in about 3 years, so i'm completely lost here. Thanks!