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

ans.

heterothermic organisms include those organisms that can switch between homeothermic (having body temperature higher than environment) and poikilothermic (having variation in internal body temperature) strategies.

some migratory birds show heterothermy as they decrease their metabolic rate during cold nights to keep their body temperature low. drop in metabolic rate allows increase in production efficiency of birds that reduces the internal body temperature to make it equal to external cold temperature during cold nights.

thus, the correct answer is 'birds allow their temperature drop in order to increase their production efficiency.'