Okay, so I'm actually going to do a reaction between a fire sulfate on and an acid. Now without getting too bogged down with the reaction details here, one of the products of this reaction is sulfur. So we'll actually see a yellow solid. It may not be very dark yellow because these are really solutions. But we'll get some sulfur produced and it will be suspended in our mixture. So it's not really a solution. It's a suspension. We learned about suspensions today. And I've actually, I have some beakers here that I'm going to use. I put an X on the bottom and what I'm going to do, I'm just going to have Savina at the time, the time of mixing until the time I can't see my X anymore. And we're going to just see if concentration really does make a difference. Okay, so I'm going to start out by looking at the solution concentration. It's just full strength 0.02 molar. So I'm going to put in 50 milliliters of my sodium sulfate. So I just put that in the beaker. So I'll tell you when to start. Just make sure you can find the start button before I, okay. So I'll let you know when to start and whenever this stops. But before I add the other reactant, the HCl, just want you to notice that the solution itself is clear. You can see through it. If I take a laser pointer and it shines right through it so you can see it up here on the screen. All right, so we'll see the difference when the reaction proceeds. So I'm going to add some HCl to this. I'm just going to add about five milliliters of this. And these reagents kind of stay. So I'm going to put the blitz in. So the reaction itself will probably have a smell. One of the products is sulfur dioxide, I believe, as I recall. All right, so I'm going to want to see this out for this in here. Go ahead and just start the timer. I'm going to say stop, stop it. And that'll be at the point where I can't see the X in here. Okay, all right, so you ready? Go. So hopefully it works. Just mix a little bit. Let it stand there. And you can see it's starting to get cloudy. It's getting pretty dark. Okay, you can stop. Actually, I probably went a little too far, but it did just went like that. Now, looking at it, you can see any light getting through. Now, what we're saying, the yellowish stuff in here is sulfur, solid, yellow sulfur. And it's a suspension. If I let this sit long enough, the sulfur will settle to the bottom. And I could filter it. You know, I could filter it and I could remove the sulfur for one. Okay, that was full strength. I'm going to do a kind of a diluted solution. All right, of course, about how many seconds was that? Seven seconds. All right, now we're going to do a diluted mixture. And see how that affects the rate. I'm not going to next week do three. It's working. I'm going to have time. So I'm going to see what's wrong. I'm going to use this. This time, I'm going to put 25 milliliters of my thyrsulfate, sodium thyrsulfate solution. And then to that, I'm going to add 25 milliliters of the still water. So again, you know, we basically just cut this dilution concentration in half. We had started with point two molar. If I cut it in half, what should be the milliliters of thyrsulfate in this solution? Let's have a point two, point one, right? All right, so it's point one molar. All right, so you've got the timer. You set it and see what happens. So I'm going to add another five milliliters of thyrsulfate solution. All right, so again, of course, looking to start. We've got, of course, the light passes very easily. All right, are you ready? All right, let's go. All right, I'm just watching it here. Starting a little bit. How long? How much time are we at right now? Yes, we're already past. The timer, I can still see the X. Let's see the... Okay, it's gone. So if you look straight down, that's really what you have to do to see the X disappear. And... It's fixed too. So we can't see any light for anyone. You can tell that it's a little more delayed. What was our final time? 36. 36. All right, so... Really, it took almost twice the top. You can see for a solution that was half of the concentration when we started. Okay, so that worked out pretty good. So, I mean, obviously this was done pretty qualitatively. But you can imagine, you know, you can actually, you know, measure, you know, the amount of products that will produce. Thank you, Samantha. Every time, and you could, you know, get your reaction rate, we could get an average rate. And we looked at our concentration of our solution and divided by our change in time for each one of these. Obviously, which reaction went faster? First of all, you know the math. The more concentrate.