Recent content by krobben

  1. K

    THF evaporation under partial vacuum

    Yes, I am aware this sounds completely stupid when we're just evaporating THF. However, in the process of making polythiopene nanoparticles, we go from THF to water because polythiopenes dissolve in THF and colloids in water. This begs the possibility that these NP's lie in an unstable colloid...
  2. K

    Schools Where do I stand for grad school?

    This is a legitimate question and I'm extremely sorry if I came off like a d-bag. Nobody in my family has been anywhere near science academia, I have no experience in grad school apps, I don't know of anyway to compare myself with other competitive undergrads in this country and when I ask my...
  3. K

    THF evaporation under partial vacuum

    Long story short I'm making some nanoparticles and one of the steps require me to evaporate THF(tetrahydrofluran) out of an aqueous solution containing the NP's. This needs to be done under a partial vacuum with only one intake valve(I know, it sucks but I have no other option). I'm looking more...
  4. K

    Schools How to study for college math/math theory

    IMO, khan academy is the best possible source for learning calculus, short of physical injecting knowledge into your brain. I've personally observed from my friends that calculus is extremely simple if you just learn it from the right view point/explanation. But none of this matters if you don't...
  5. K

    Calculus 1 (I'm taking the class in a week.)

    From my experience in all of the calc courses, this is all that matters... 1. WHO you learn from. Calculus is more about ideas/concepts where as college algebra is just rhetoric memorization. Who guides you in learning is everything in calc. If your professor is standing up there speaking total...
  6. K

    Schools Where do I stand for grad school?

    I'm curious as to where I should apply for grad school in that I don't want to waste my time on colleges out of my league. I'm looking to study density functional theory or alike so I guess physical chemistry or soft matter physics(can anyone really draw the line?). I should be graduating with a...
  7. K

    When does x=a in the taylor series stop being x=a?

    I really do appreciate your answers and help all together but I'm still confused here. I'm curious as to how f(x)=f(a)+f'(a)(x-a)/!+f''(a)(x-a)/2!... is possible as a variable equation when we have already declared that x must equal a. Obviously this isn't true but I want to know why we can stop...
  8. K

    When does x=a in the taylor series stop being x=a?

    I'm having a hard time understanding the fundamentals of the taylor series. So I get how you continually take derivatives in order to find the coefficients but in order to do that we have to state that x=a. Well when we finally get done we have an infinite polynomial of...
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