00:01
Okay, we were given the strong acid, cf3, so3h.
00:07
We were told how many grams we had.
00:09
We got to figure out the ph.
00:12
So the first thing to do then is convert these grams into moles.
00:17
So you need to know the molar mass.
00:18
So you got to add it all up.
00:20
One carbon, three fluorines, sulfur, three oxygens, and an h.
00:24
If you add it all up and run in the nearest tenth, you should have 150 .1 grams per mole.
00:31
So you know what to divide that by, to give you this much smaller number, 4 .10 times 10 of the negative 3, moles.
00:40
So that's how many moles we have.
00:42
So to get the concentration, we've got to take that volume we were given, 250 milliliters.
00:48
Got to divide that by 1 ,000 so we know how many liters it is...