Question

put the following acids in the order of increasing acidity and please explain reasoning CCl3COOH, CH3COOH, CF3COOH

Answer 1

least acidic CH3COOH, then CCl3COOH, and most acidic CF3COOH
reason is electronegativity, fluorine has highest electronegativity so it draws away electron form its C and he puls electron from C in COOH group at the end H is more easily released, next Cl has less value of electronegativity and C has even smaller electronegativity...

Answer 2

The H CF3COOH is very acidic b/c the Fluorine's are pulling the electron density away from the COOH bond allowing the Hydrogen to be easily deprotonated

Answer 3

yes

Answer 4

CH3COOH pKa= 4.792
CCl3COOH pKa= 0.66
CF3COOH pKa= 0.23

Answer 5

thank you for your response.. if its not too much trouble could you please explain how the conjugate base is more stablized in CCl3COOH vs. CH3COOH

Answer 6

conjugate base is more stablise means acid must be week now in the compound see CCl3COOH and CH3COOH wat is common we find that here C .COOH are common remain CL3 and H3 now in btw dem cl is more acidic we know in period from going left to right acidic character increases therefore we conclude that CCl3COOH is more acidic than CH3COOH then most stable conjugate base will be of weak acid that is of CH3COOH

Answer 7

i concur completely with heena