00:01
Hi, so in this case the short answer is that yes, we're going to have a buffer, but now we're going to see why.
00:06
Okay, so we have mixed equal volumes of hcl that has a concentration of 0 .1 molar and tris in its base form.
00:21
Tris in its base form i'm going to label it as tris minus, so this is the basic form, and in this case we have a 0 .2 molar solution.
00:35
Let's say that we mixed the same amount of each of them, so the amount of mole that we have added of hcl and tris minus.
00:45
Essentially we're going to find is that the amount of mole of hcl is going to be equal to one half the amount of mole of tris minus that is present in solution.
00:59
Why is that? because the concentration is one half and we added one half of it, that's it.
01:05
Okay, and in this case since we mix equal volumes the total volume is going to be equal to two times the volume that we added of each, but as you will see we really don't need that in order to know if we have a buffer or not...