Asked by Tyler

Calculate the number of hydrogen molecules formed when 5.6 mL of ammonia at STP is decomposed by the following reaction:
___NH3 „³ ___ N2 + ___ H2
Answered by bobpursley
ammonia gas?

You will have to know the temp,pressure to convert that volume to moles, then to molecules.

Recommend balance the equation first.
Answered by Graham
You have 5.6 mL of NH3.

There are 22.4 L per mole of gas at STP.

So 5.6e-3 / 22.4 mole of NH3.

Balance the equation to determine the corresponding number of H2.

Answered by bobpursley
Correct, Graham, I missed the STP statement.
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