Given the following equation: NH3 + NH3 +O2 �¨ NO + H2O

Question

Calculate the number of grams of ammonia needed to form 40.12 moles of nitrogen monoxide.

Answer 1

a. You need to make sure the equation is correct. Do you really need to write NH3 twice or is that a typo? Second, you mut balance the equation.
The matter of solving it is stoichiometry. Here is an exmple of a stoichiometry problem. Just follow the steps.
http://www.jiskha.com/science/chemistry/stoichiometry.html

Answer 2

does that work the same way with moles

Answer 3

Does WHAT work the same way with moles. The instructions for the stoichiometry problem converts everything to moles FIRST, then uses the equation to convert moles of one substance to moles of another substance. So for your problem, step 1 (convert grams to moles) has been done already and you don't need to do that step.