At constant temperature and pressure, what is the maximum volume, in liters, of HNO3(g) that can be made from 10.39 L of NO2(g) and 15.53 L of H2O(g)? I don't even know how to start it...

Answer 1

NO2 is not the anhydride of HNO3. How advanced is this course? Do you know what equation you are expected to use?

Answer 2

3 NO2(g) + H2O(g) 2 HNO3(g) + NO(g)
At constant temperature and pressure, what is the maximum volume, in liters, of HNO3(g) that can be made from 10.39 L of NO2(g) and 15.53 L of H2O(g)?

That is the entire question and this is AP Chem but gas stoichiomatry from regular chem. I just do not remember at all how to do this

Answer 3

Thanks for the added information. This is a limiting reagent problem. All of them can be worked the same way. Here is a worked example. Let me know if you get stuck but post your work if you do.
http://www.jiskha.com/science/chemistry/limiting_reagent_problem.html