 Anyways So let's do an actual yield problem this time. Okay, so let's say we started with I don't know 10 grams of iron oxide iron 3 oxides If we got a 35 5% reaction yield how Many grams of iron would we have made? Okay, is that okay, so if I remember all those numbers, so what did I say start with a mass of Iron oxide of 10 grams the action yield So the percent yield was 35 percent What was the original mass or what sorry, what is the mass of iron? Everybody okay with that? So again, you're going to Have to convert this to moles Okay, because why because iron and iron oxide way different amount So if you're just trying to do it by mass, you're not gonna it's not gonna work out So the first thing we're gonna do is figure out the number of moles of iron oxide. So how do we do that? Anybody else So we can cancel that Okay, so what's the number of moles of iron That we should have made in this equation or in this reaction if it all went to completion How will we figure that out to completion? Does anybody able to speak or understand English So does it make or not make sense why I did that Makes sense to one person anybody else. Okay, it makes sense makes sense. Okay, good thing. Okay, so Is that 35 percent yield for this reaction? What yield is this? Okay, so how are we going to get the percent yield well the percent yield equation It's just like any other percent equation. It's the part over the whole times a hundred so it's gonna be the essentially expected Oh, sorry actual moles over the expected times 100% So do we know all of these things? Do we know the percent yield? Help me out guys. Yes or no? Yeah, do we know the actual yield? No, we don't know that right do we know the expected yield? Yes, what is that number? Point one two five. Okay, and do we know? 100% yeah, okay, so let's just rearrange this equation to account for that. So remember We can kind of make this if it helps you to think about things this way So when we do that we are going to multiply both sides by expected yield So expected yield times the percent Goodbye goodbye what? Good job 100% And that gives us what? The actual yield so when we do that now, this is the actual yield in moles So we're going to take that number that's still in our calculator multiply it Let's just write it out. So 0.1 to 5 moles times 35.0 percent divided by 100% right so what cancels out? Good job percent Right, so we take that times 35 divided by 100 And that gives us the number 0.04 So what is this telling me? If I had a 35% yield of this reaction, I would be made I would make 0.0438 moles of iron from 10 grams of iron oxide so everybody okay with that analysis of it any questions on this one Okay, so good job guys If you want to do you want to put it in grams, let's put it in grams So what do we do Sarah what do we do? And so what is it? 35.85 Any other questions on this one? Any other? Okay, cool. Good job