If 3.78 L of nitrogen gas and 28.73 L of hydrogen gas were allowed to react, how many litres of ammonia gas could form?

Volume of ammonia formed is 7.56 L

Explanation:

Volume of 1 mol of gas is 24 L.

No. of mol in 3.78 L of nitrogen =

No. of mol in 3.78 L of hydrogen =

I mol of nitrogen required 3 moles of hhydrogen.

So, 0.1575 mol of nitrogen will require 0.4725 moles of hydrogen.

As moles of hydrogen is 1.197, therefore, nitrogen will be the limiting reagent.

So,

1 mol of nitrogen forms 2 moles of ammonia

0.1575 mol of nitrogen will form 0.1575 mol × 2 = 0.315 mol of ammonia

Volume of ammonia = 0.315 × 24

                               = 7.56 L

Volume of ammonia formed is 7.56 L

answer; i believe that the correct answer is (a) potassium(k)

it means there are 3 atoms of oxygen