Hey, guys. So here we have to determine the molecular formula for the following organic compound. So here we have to count correctly the number off each element. Remember every ending corners of carbon. So each one of these represents a carbon. Okay, so we're gonna say each of them is a carbon. So let's actually draw that carbon in. Remember, carbon must make four bonds, so each one of those carbons. So this carbon here we see making 123 bonds. So it has one hydrogen. This one's already making 1234 bonds. So it's good. This one has made you 1234 bonds. So it's good. This one's only making three. So it has one hydrogen and sing with these other two. Now, if we're gonna count, let's see how many carbons we have. So we have one, 234567 carbons, C seven. Hydrogen is how many hydrogen do we have? And then how maney Oxygen's do we have? We have to hear. Plus, another one is three. So that's +03 So the formula here a molecular formula ABC, 78603 Again, we're only covering the simplest part of organic chemistry. When you move on to the actual organic chemistry, you'll be dealing with much larger structures, but it's always important, established the fundamentals like we're doing here.