00:01
This problem gives us a balanced chemical reaction.
00:03
We're told that we start with 0 .4 moles of each of the reactants.
00:07
And then we're kind of asked how much is going to be produced and what is the limiting reactant.
00:12
So in order to figure out how much is going to be produced, we're going to do a one -step mold -mole stochometry calculation.
00:20
So we're going to go from moles of reactant to moles of product using our balanced chemical reaction.
00:26
So i'm going to start with phosphorus.
00:28
So i'm going to start with 0 .4 .00.
00:31
Moles of phosphorus.
00:34
If we start with moles of phosphorus, the moles of phosphorus must go on the bottom.
00:38
We're trying to get to our products, so moles of p205 will go up top.
00:43
When we have moles on top of moles, we need to look at the coefficients and the balanced chemical reaction.
00:48
So we have two p205 for every four phosphorus.
00:54
So that means we would produce 0 .200 moles of p205 if phosphorus is the limiting reactant...