<p>So I was taking some college course’s final exam for an introductory biology course and there were like a ton of questions on moles! Like moles in chemistry terms: one mole of ethanol and a mole of hemoglobin. I dont know what the heck a mole is because none of my review books ever mentioned anything about this. Am I going to have to know it for the AP Bio exam?</p>
<p>no not for ap bio</p>
<p>For labs and stuff, you need to know molarity which will definitely be on the test, but wont at all be something huge. A mole is just a convenient number that can be used to say how many molecules or atoms of some compound there are by comparing the mass of a sample with reference masses found on the periodic table.</p>