00:01
Hi, so we are to identify the limiting reactant in this reaction.
00:06
First step is to calculate the number of moles of each reactant.
00:10
Let's start with volume hydroxide.
00:14
Remember that molarity, since we have here solution, is equivalent to moles of solute over the volume of the solution in terms of liters.
00:24
So we have 0 .500 molar, so that's moles per liter, multiply the volume, 25 ml, convert ml to liters, 1000 ml is 1 liter, and then cancel ml here and liters, and we'll get 0 .0125, this is moles of volume hydroxide.
00:49
And then the other reactant is nitric acid, so that's hno3.
00:54
We have 0 .100 moles per liter, and then the volume is 30 ml, convert ml to liters, and then we'll cancel ml here and liters, we'll get 3 times 10 to the negative 3, this is moles of hno3.
01:16
And then we will solve for mole ratio.
01:20
So mole ratio in this case is the number of moles of the reactant divided by the coefficient of that reactant from the balance equation...