Reimann's Law..maajoor Helpp!
1. Use Riemann sum ( do NOT use fundamental theorum of Calculus) to calculate
(integral) b= 1 and a =0 e^x dx
Attempt:
(delta x)=b-a/n 1-0/n =1/n
xi = 1/n
(integral) b=1 a=0 sigmaf(xi)deltax
limn->infin sigma f(i/n)1/n
use eqn to get...limn->infin...
i took the ln of both sides, and then found the derivative, and i got the answer as zero.. so i got ln y= 0
den i used the fact that e^lny = y...there fore y= e^0 =S..
l'hospitals rulee! major help
1. i don't know how to do this question
limx->infinity (x/x+1)^x. i keep gettin the rong answer, some heelp pleasez:confused:
2.the right answer is 1/e but I am not getting that, i tried many diff ways, i can't post my work it here because its too long...
1. for the equilibrium reaction below predict what would happen if dilute HCl were added to the K2CrO4 solution?
2. 2CrO4(aq) + 2H+(aq) <--> Cr2O7(aq) + H2O
3. The reaction will shift to the right because the acid will donate a proton which will react with H+ to produce hydrogen...
so basically da H+ is the acid..cuz acids donate a proton..so therefore the reactino will proceed in the forward direction to reduce the stress of NaOH...? need to know if I am right =)
Le chatelier's principle..HELP!
1. for the given reaction at equilibrium predict what would happen if NaOH were added to a solution of K2CrO4
2. 2CrO4 (aq) + 2H+(aq) --> Cr2O7(aq) + H2O
3. my answer was that it would not affect the equilibrium since NaOH is a liquid :confused...