 Okay, so the first one is calculate the number of atoms in 1.7 moles of boron. So the problem is, I mean, okay, so it's asking what is the number of atoms of boron, right? So N is amount, right, amount can be number of moles, right? So it gives us the number of moles of boron, 1.71 moles of boron, and it's asking, well, what's the number of atoms? So do you guys recall how to do that? Yeah, just Avogadro's number, and this is something you should have memorized by now. So 1 mole of boron, 6.022 times 10 to the 23rd atoms of boron. Remember, this isn't something that's specific to boron. It's anything that you have a mole of is 6.022 times 10 to the 23rd. Yeah. Is that what you just mentioned? No, ask pertinent questions to the question. Anything, any questions about this particular question? Okay, cool.