00:01
Hi! so to solve for this, we will use the formula for molarity.
00:07
Remember that molarity is moles of solute over the volume of the solution in terms of liters, okay? and rearranging this to solve for the volume, we will divide the number of moles.
00:24
If we have two grams of hbr, we have to convert this to moles by dividing the molar mass of this compound.
00:31
That's 80 .91 grams and then we have here moles of hbr.
00:35
Divide the molarity, we have 1 .5 moles per liter.
00:40
Now we could cancel some units, grams, then we could cancel moles and the remaining unit as you can see is liters.
00:48
And this will give us 0 .0165 liter.
00:54
So let's just convert this to ml...