Sunday
May 19, 2013

# Posts by Robert

Total # Posts: 726

Calculus
oops, that was under my brother's name hehe

Calculus
Solve the differential equation dy/dx = -xe^y and determine the equation of the curve through P(1,2) I tried solving the differential equation and I get y = log(x^2/2 + C). Is this correct? Now I forgot how to find the equation. Thank you!

Chemistry 2
oh okay, well in that case there's no change? Nothing happens to the ethanol and we get the same K constant that we had previously?

Chemistry 2
oh this is just a theoretical question. It's about the hydrolysis of ethyl acetate, it gives ethanol and acetic acid as the products

Chemistry 2
Supposed you stoppered the flasks after your titration to determine the equilibrium constant and kept the solutions for another day so that the equilibrium was re-established. What would happen to the amount of ethanol present? What would be the relationship of the original eq...

Chemistry
okay thanks Dr.Bob, that's exactly what I did too.

Chemistry
because it's a 1:1 ratio for all, then at rxn, we would have -x for both EtAc and H2O and + x on the right, so x = 0.03045. Is this correct?

Chemistry
does it mean that because acetic acid has 0.03045 mol at equilibrium that x = 0.03045 mol? So then Ethanol would also have 0.03045 mol at eq and EtAc and H20 would both be their initial [conc] - x?

Chemistry
Find the equilibrium moles for the following reaction with initially 0.051 mol for Ethyl acetate, 0.260 mol for water and 0.03045 mol of acetic acid at equilibrium. I'm not sure how to get the ones at equilibrium for the left side or even how much you have to take away for...

CHemistry- For Dr.Bob
Awesome, it's all clear now, thanks a lot again!

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