suppose 4.00 mol of H2 reacted with sufficiant nitrogren. how many grams of ammonia would be produced?

Answer 1

Hi Danielle!

This question is trying to assess your understanding of the concept of Stoichiometry.

In order to solve this question, first you need to have a balanced reaction.

That is: N₂+3H₂ —> 2NH₃

Now that we have a balanced reaction, we can start our conversions:

Note that since the question is stating that we have sufficient Nitrogen present, we do not need to worry about Nitrogen running out during our reaction (being the limiting reactant).

So, we can simply see how much NH₃ is produced from 4moles of H₂ by following steps below:

Using the balanced reaction, we can use the ratios to figure out how many moles of NH₃ will be produced.

4mol H₂ x (2NH₃/3H₂) = 2.667mol NH₃

Now that we have the NH₃ in moles, we can convert that to grams of NH₃ using the molar mass:

2.667 mol NH₃ x (17grams/1mol NH₃)= 45.34g NH₃

I hope this helps :)