If you have 4.00 gg of H2, how many grams of NH3 can be produced?

Express your answer with the appropriate units.

22.49 g of NH3

Explanation:

The balanced equation for this would be:

3H₂+N₂ → 2NH₃

So let's take note of this:

We will need 3 moles of H₂ to produce 2 moles of NH₃.

Now let us convert:

First we determine the molar mass of H2:

Element:

     number of atoms   x     molar mass

H   =          2                 x       1.01 g/mol = 2.02 g/mol

Let's see how many moles of H2 there are in 4.00g

Now we can see how many moles of NH₃ we can make given the ratio and convert it again to grams by getting the molar mass of NH₃:

This means that with 1.98 moles of H₂, we produce 1.32 moles of NH₃

So let's get the molar mass of NH₃ so we can convert it to grams:

N      =   1 x 14.01 = 14.01

H      =  3 x 1.01   = 3.03

                             17.04g/mol

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