Factors related to acidity

Moderators: Chem_Mod, Chem_Admin

skyeblee2F
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Factors related to acidity

Postby skyeblee2F » Sun Jan 27, 2019 5:13 pm

Why is electronegativity proportional to acidity?

Cienna Henry 1J
Posts: 61
Joined: Fri Sep 28, 2018 12:15 am
Been upvoted: 1 time

Re: Factors related to acidity

Postby Cienna Henry 1J » Sun Jan 27, 2019 5:22 pm

"Recall that electronegativity is the measure of an atom's attraction for electrons. The higher the
electronegativity, the greater the attraction. We can extend this idea further and conclude that
atoms with higher electronegativity will be less inclined to share their electrons with a proton.
Thus, increasing electronegativity of the atom that shares an electron pair will decrease basicity."

kateminden
Posts: 63
Joined: Fri Sep 28, 2018 12:24 am

Re: Factors related to acidity

Postby kateminden » Sun Jan 27, 2019 6:30 pm

Adding on to what was stated above, the more electronegative a certain atom in a molecule is, the more it draws on the electron density of the overall molecule. This pulling of electron density makes certain molecules more polar than others. Acids become stronger as the bond between the H atom and some other element X (the H-X bond) becomes more polar. This is because the higher the difference in electronegativity (the more polar the molecule is), the easier it is to form H+ and X- atoms. I hope this helps!


Return to “Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions”

Who is online

Users browsing this forum: No registered users and 1 guest