Bonds and pH

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Bonds and pH

Postby 605379296 » Fri Nov 29, 2019 2:16 am

Why is it that short strong bonds are less acidic and long weaker bonds have more acidic components?

Vanessa Chuang 4F
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Re: Bonds and pH

Postby Vanessa Chuang 4F » Fri Nov 29, 2019 10:05 am

Shorter bonds means that the hydrogen is held more strongly to the central molecule so that when put into a solvent, there are less hydrogen atoms that are pulled off. Therefore, it is less acidic.
Longer bonds mean that the hydrogen is held more weakly so that it is easier to pull it off when put into a solvent. Therefore, it is more acidic because there are more hydrogen in the solvent.

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Re: Bonds and pH

Postby MMckinney_4H » Fri Nov 29, 2019 10:07 am

The stronger/short the bond, the less likely it is to dissociate in water. This means that with longer bonds, the hydrogen is more easily released when it comes in contact with a base, so the ratio of molecules that dissociate for molecules with longer bonds is higher making it a stronger acid.

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Re: Bonds and pH

Postby AveryAgosto » Fri Nov 29, 2019 11:57 am

the longer and weaker a bond is, the more likely it is to be soluble in water and dissociate. it is the opposite for short and strong bonds

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Re: Bonds and pH

Postby Adrianh72 » Fri Nov 29, 2019 11:59 am

Shorter bonds are stronger, and so they are less likely to dissociate in water whereas longer bonds are weaker and so more likely to dissociate in water.

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