Determining Strong Acids

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Jenna Ortiguerra 4G
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Joined: Sat Aug 17, 2019 12:18 am

Determining Strong Acids

Postby Jenna Ortiguerra 4G » Fri Dec 06, 2019 2:06 am

When determining which molecules are more acidic, in what instances do you use electronegativity vs. atomic radius vs. resonance vs. induction?

Kassidy Ford 1I
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Joined: Sat Aug 17, 2019 12:16 am
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Re: Determining Strong Acids

Postby Kassidy Ford 1I » Fri Dec 06, 2019 9:20 am

Strong acids dissociate the easiest, so a longer bond length between H and an atom will mean a stronger acid. This is why HI is a stronger acid than HCl. When comparing weak acids, look at the stability of the conjugate base that is left over after the acid is deprotonated. A more stable conjugate base means that the acid it came from was less stable, or a stronger acid. This is why resonance and electronegativity in the conjugate base of an acid can help determine the relative strength of a weak acid.

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