00:02
Hi there.
00:03
In this question, we are given an unbalanced chemical equation.
00:07
So the first thing we want to do is balance this.
00:09
I see two hydrogen on the reactant side and only one hydrogen on the product side.
00:14
So i need to add a coefficient of two in front of hcl.
00:18
This gives me two chlorines on the product side, but i already have two chlorine on the reactant side.
00:24
So this equation is now balanced.
00:26
And we notice that all of the reactants and the product are gases.
00:31
And there are, all under the same conditions of temperature and pressure.
00:36
So that means that the mole ratio in the balanced equation, we notice that it's one to one to two, that's the mole ratio, but since these are all gases at the same temperature and pressure, this is also going to be the volume ratio.
00:56
That is because avagadro said that equal amounts of gases under the same conditions of temperature and pressure have the same volume.
01:05
So there's a direct relationship there between the volume and the amount of each gas, the moles.
01:13
All right, so we can use the volume ratio to solve this.
01:16
And we know that we have 2 .00 liters of the hydrogen and 3 .30 liters of the chlorine.
01:30
And we want to know how many liters of hcl will be produced.
01:35
So this is a limiting reactant problem.
01:37
What that means is the two reactants are not in exactly the correct ratio, which means we will run out of one of them first.
01:47
And when we run out of one of them, the reaction will stop because it cannot proceed anymore if it's missing one of its reactants.
01:55
It's somewhat like burning a campfire.
01:58
For a campfire, the reaction needs wood and it needs oxygen...