Recent content by biochem850

Yeah, someone else did the IR/NMR for me. The smallest peak is CDCl3 and it seems that setting it to 0 is prudent. I did some thorough review of NMR/IR and I'm pretty confident now! Thanks guys!

I'm sorry, 1-bromobutane (or n-butyl bromide).

In examining the IR spectrum, I noted that there were peaks for CH2-x where x is bromine, methylene (2 peaks) and a peak corresponding to a methyl group; I concluded that I've synthesized n-bromobutane. Is the method I used to interpret my spectra sound? *CDCl3 was the IR solvent In addition...

Disregard this post; I've discovered my mistake.

Homework Statement [SIZE="4"]∫ \frac{5e^{\frac{1}{y}}}{3y^{2}} Homework Equations [SIZE="4"]u=5e^{\frac{1}{y}} u'= -5e^{\frac{1}{y}} The Attempt at a Solution [SIZE="4"]I keep getting: -\frac{5e^{\frac{1}{y}}}{3y^{2}} +c but I know that there shouldn't be a y^{2} in the...

Hey guys! I've been a biochem major for a little while but I recently took a calculus course and received an 89 and I found that although mathematics may seem a little tedious, I truly love it. In addition, I really like chemistry but mainly the the manners in which physics impacts chemistry...

Copper

Homework Statement Cu(s) + 4 HNO3 (aq) Cu(NO3)2 (aq) + 2 NO2 (g) + 2 H2O (l) Cu(No3)2 + 2NaOH -------> Cu(OH)2 + 2NaNO3 Cu(OH)2→CuO + H2O CuO + H2SO4 -> H2O + CuSO4 CuSO4(aq) + Zn ( s) ------- ZnSO4 (aq)+ Cu(s) I carried out the follow reactions using copper as an inital product and my...

Does anyone know of websites where I can find many problems on the topic in the title line (my textbook has far too few)? Thanks!

Homework Statement x^3-8x+10=0 Homework Equations The Attempt at a Solution By dividing by x-1 (1 is a factor of the solution), I got (x-1)(x2+x-7)+3+10=0 which equals x^3-8x+20=0 I think the solution would be imaginary but I used a graphing calculator and there is one...

20°C is is greater than -95°C (melting ) so acetone would not have melted and is less than 56°C (boiling) so acetone would not have evaporated; I'm assuming the normal phase of acetone is liquid and you don't merely assume because something hasn't melted or boiled that it is solid? Is my...

I was reviewing a chart of Physical properties of pure substances (20 °C) Acetone has a melting point of -95°C and boiling point of 56°C so you'd assume it's solid (but obvioulsy it's liquid). In addition, Diphenyl has a melting point of 70°C and boiling point of 255°C so you'd assume it's...

Homework Statement I've not written a lab report since prep school and I need some critiques (thorough). see attached Homework Equations The Attempt at a Solution

I'm an undergraduate and my school has quite a small chemistry department and lacks the resources of many other schools (i.e. we have less than "ideal" equipment). Are you saying that a hot plate would supply a more even and efficient heat (i.e. less heat dissipating into the environment)? At...

I was heating water in lab and it took approximately 25 minutes to raise the temperature of my water by 65 degrees Celsius; perhaps the flame wasn't sufficient? I made certain that I could the the reducing and oxidizing flame, yet the liquid heated quite slowly. In addition, the flame was...