How would you cause the gravitational force between two objects to increase?

Given Balanced Reaction :

2N₂ + 3H₂ > 2NH₃

The Balanced Reaction tells us that :

When Two Moles of Nitrogen Gas Reacts with 3 Moles of Hydrogen Gas it results in 2 Moles of Ammonia.

Our Question is How many Moles of Ammonia are made when 3 Moles of Hydrogen gas is used.

From the Balanced Reaction it is Obvious that When 3 Moles of Hydrogen gas is used 2 Moles of Ammonia is made.

So, The Answer is 2 Moles of Ammonia is Made.