Recent content by Justin LaRose

"I studied the calculation for a minute or so longer and I understand how the equation is set up, so I no longer need an explanation from Charles unless he wants to explain it. Thanks all (thank you Justin as well)!" Thank you fellows very much for the help here. This friend of mine rarely...

"Tell Charles: Charles, I am encouraged by the fact that your calculation matches my experimental work. It has been so long since I've done freshman chemistry that I embarrassingly feel unfamiliar with your approach. I see how your calculation worked, but could you explain how you were able to...

She does know what she is doing. This is my best friend, she's the smartest person at Wayne State. She wanted me to thank you for your advice, Charles, she said she was going to attempt this before. Please stop telling me someone is going to be blowing something up. This is a professional...

Homework Statement [/B] I work in a lab, normally we evaporate our acid and dilute with water, but I have 300 samples and this would destroy the fume hood so I need to raise the pH using ammonia. known data: Samples are 40ml of 9M HCl I need to add Xml of XM ammonium hydroxide (aka aqueous...

Right. Yeah chapter 3 was when I just sort of lost touch, that was the first time I was like I have no clue wtf is going on. Maybe I'll just do the in book problems and then revisit the end of chapter exercises after I read part 1. I don't really know. I'm almost done with the chapter though...

Yeah

A fight it is, it takes about 20 minutes a page! Since you are familiar with the book, one thing that is always tough to figure out, the decision on what problems to do at the end of the chapter. I have the instructor solution manual, it is just hard to tell what is most important. Any advice?

Right that's what I thought. thanks a lot. I have a lot of confidence in my mathematical abilities, I took classes beyond linear algebra (my favorite math class ever). What I'll need to brush up on is Fourier series and the stuff I learned in my math methods class over at Wayne State...

Also, this is just really confusing... What does it actually mean that the expectation value of x = 0. What is this saying, the integrals are not important here, what does this actually mean, I do not have a good sense about what I am actually even doing. Is this saying along a line a system...

Homework Statement I am trying to solve a problem from a popular quantum mechanics text. I am learning on my own. I am trying to calculate the variance, which is <x^2>-<x>^2 = variance in x. I posted a photo of the problem as a picture that is linked below as well as the solution, I simply...

Right. I understand integration intuitively, and I'm sure if we were sitting down together you could break it down for me. Your example was really solid and I drew your graph exactly and convinced myself it had to be what it is. The explanation in the book is definitely a bit strange, and I went...

It is a great example you've given me. I tried to draw out your graph exactly as well as h equaling 0.25, and I'm still not getting it. I've got to put it away for now, this is very frustrating. Considering it more, I understand the need to multiply by h in order to get the correct value for y...

Hello, This is not a homework problem, but a worked example I encountered from Hobson and Riley 3e pg 60, if anyone has the book. If not I took a screen shot. [I actually just decided to post the photos on a blog so no one has to download anything]...

Yeah that there pretty much confirms that she had the right numbers, because looking online I saw that those molecules fit that criteria. Thanks a lot for the help there. Like I said, this is for a friend who is on a research vessel in the arctic and she said her email is slower than any...

I think I may be in the wrong place.