Undergraduate /
'A new generation makeing great scientific discoveries' - Carnegie Mellon [4]
"Please submit a one-page, single-spaced essay that explains why you have chosen Carnegie Mellon and your particular major(s), department(s) or program(s). This essay should include the reasons why you've chosen the major(s), any goals or relevant work plans and any other information you would like us to know. If you are applying to more than one college or program, please mention each college or program you are applying to. Because our admission committees review applicants by college and programs, your essay can impact our final decision. Please do not exceed one page for this essay."
I liked it. It sounded like you were talking straight to me!
That said, there are a few things I would take care to look at.
1. Listing courses isn't necessary; rather you can say "Having experienced the full scope of my high school's chemistry curriculum..." or a related version.
2. I'm not sure about the third paragraph. I understand your reasons for putting it, but there are things I would do to make it more believable.
And that I wanted to "save the world?"
That's a bit of a lofty ambition, to put it lightly.
mishaps
Perhaps a better word would fit here. Mishaps is similar to mistakes, and the world doesn't have mistakes so much as it has issues.
I know how to get things done in the world
Is there any evidence for this? Again, this is a pretty big statement.
It's something I have realized as a result of high school and it is something I intend to carry out. College is one of the big steps.
The word "something" is repeated. I think this is better: It's something I have realized as a result of high school and intend to carry out in college and beyond.
The last part was great! Overall nice job, just make sure to keep it realistic and I wish you best of luck!