00:01
In this question we have an acid -base reaction or in other words a neutralization.
00:09
In a neutralization in this case we have a strong acid reacting with a strong base and in the neutralization these will produce a salt which is an ionic compound and water.
00:27
This is just a specific type of double replacement reaction.
00:31
Our acid here is hcl, that would be aqueous.
00:36
Our base is sodium hydroxide, also aqueous.
00:42
The salt that we're going to produce when we exchange ions here, we see the salt is nacl and water.
00:52
So of course hoh or simply h2o and it would be a liquid.
00:58
Alright so looking at the coefficients here this is balanced as written.
01:03
So each of the coefficients are simply one which tells us our mole ratio is going to be for every one mole of hcl.
01:13
We need one mole of naoh, we're going to produce one mole of nacl and one mole of h2o.
01:22
So looking at our reactants that's what we're focusing on because that's what we're interested in.
01:26
We see a one to one mole ratio.
01:29
Another way to think about that is that the moles of hcl that we add have to be equal to the moles of naoh since we have this one to one ratio...