Strong vs. Weak

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Strong vs. Weak

Postby Hannah_1G » Fri Dec 06, 2019 10:19 pm

If the product of an acidic reaction still has hydrogens in its molecule is it commonly a weak acid? Like acetic acid, CH3COOH after dissolving in water its left as CH3CO2-, whereas HCl is left as Cl-.

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Re: Strong vs. Weak

Postby SnehinRajkumar1L » Sat Dec 07, 2019 12:05 am

No. Strong acids and weak acids are determined by bond length for binary compounds and electron-withdrawing power. An exception to the trend you noticed is H2SO4, which when it dissociates, becomes HSO4-, but is still a strong acid.

Alex Hitti 3E
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Re: Strong vs. Weak

Postby Alex Hitti 3E » Sat Dec 07, 2019 12:16 am

No, bond lengths are what determine strong acids (long) and weak acids (short). Also the rule that it'll be weak if it has an extra H won't suffice because H2SO4 dissociates to HSO4- and it is still a strong acid. A weak acid is usually organic compounds whihc have C and H.

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