Question

3 moles of nitrogen and 5 moles of hydrogen react to form ammonia. Use the balanced equation below to determine which is the limiting reactant.

N2 + 3H2 --> 2NH3


Group of answer choices

5.0 moles of H2
2.0 moles of H2
3.0 moles of N2
4.0 moles H2

Answer 1

Hi and welcome to QuestionCove!

In order to determine the limiting reactant, you should pay attention to the ratio of elements needed within the equation to see how much of each you would need for the reaction to occur.

For example, the equation
N2 + 3H2 --> 2NH3
tells us that 1 mole of Nitrogen gas and 3 moles of Hydrogen gas can produce 2 moles of Ammonia.
So, we know that whatever amount of Nitrogen is consumed, 3 times as much Hydrogen will be consumed in this reaction. Inversely, the amount of Nitrogen (by moles) will be 1/3 the amount of Hydrogen.

@vocaloid may be able to check my explanation and help you further. (She's something of a real scientist, and I've been known to flub chemistry questions in the past =D )

Answer 2

alright so NH3 requires 1 molecule of Nitrogen and 3 molecules of Hydrogen i want you to imagine them as hotdogs and buns, imagine in order to make one full hot dog you need 3 buns and one hotdog basically whichever one limits u to make the hotdogs is the limiting reactant

Answer 3

heres a picture of what u have to work with 3 mols of nitrogen and 5 moles of hydrogen

Answer 4

i think you can easily figure it out with this picture