 Okay let's do this next. Malarity problem. Calculate the molarity of a 2 liter solution containing 5.0 moles of NaOH. So this one's a little bit easier, right? So what do we know already? The volume. The volume in liters? Do we know that? Yeah. So what is it? 2.0 And what else do we know about this? The number of moles. The number of moles of NaOH. And in this case NaOH of course is the solute. And what is that number? 5.0. 5.0 moles. What does it say? Calculate the molarity? Can we do that? So what do we do? Again, moles on top, right? What is that? 5.0 moles. Letters on bottom, right? 2.0 liters. 2.5, right? You can calculate it anymore. That one was pretty smooth relative to the last one. There will be something like that. There will be a lot of somethings like that. I'm expecting you to get that one. Any questions on that one? Everybody's cool with that, right?