Recent content by kooombaya

:) :)

So were galvonometers invented before voltemeters? Is that it? I am sooooooooo confused -_-

thanks i'll reread the wiki article. Edit: Am I correct in saying it's the VTVM?

I didn't know where to post this question which is: What type of meter, which had very good loading characteristics, were used to measure voltages before digital meters were produced? I tried googling but it's all a jumble. can anyone guide me? thanks. Edit: is it a voltmeter?

Using this reference as an example let's name the double bonded carbon attached to the methyl as C1. In my textbook it says that C1 has two alkyl groups on it. The CH3 is one alkyl group and the carbon to the left of C1 is the other alkyl group (let's call this C2). I'm confused, why is C2...

Yup exactly. Thanks again.

Today in class we learned about electron diffraction and the wave-particle duality. Fascinating stuff (from what I understood) but I was wondering, how do scientists isolate the electrons to be used in the experiment? I know you can do neutron scattering as well, how would you isolate neutrons...

From what I understood it goes something like this: Say we added 10 mL of 0.1 M NaOH. Then this is the amount of acid in the buffer solution that reacted with the NaOH to reach a new equivalence point. It's the same for HCl, except the HCl acts with the base in the buffer solution to reach a...

This was how the question was stated in the lab book. I found out what I did wrong by the way. Thanks for your time.

Posted something before thinking it was right... still wrong.

I required 19.92 mL of NaOH to neutralize a 10 mL portion of my buffer. I did the same thing using another 10 mL portion of the buffer but this time with HCl and it took me 17 mL. I then used the henderson-hasselbalch equation to find my pKa. I measured my pH of my buffer with a pH meter and...

Nope, we weren't given a list to choose from so I'm guessing it could be anything?

This isn't really a homework problem. In lab we had an unknown buffer solution and we had to to titrate it with NaOH and HCl to try to identify what the buffer is. In the end I got my pka value equal to 4.52 I can't identify the buffer. My Ka is 3E-5 and I can't match any Ka values to this. Did...

OK, thanks for clearing that up!

Hi, I was wondering if cyclohexanol is polar or nonpolar. My guess is that it's nonpolar but the hydroxyl group attached to it is confusing me. That oxygen can attract electrons making it somewhat polar?? Also can it form a hydrogen bond? Would it form one with water making it somewhat soluble...