strong vs weak
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strong vs weak
How do you know if a molecule is a strong vs weak acid (by looking at it)? because on sapling they have a chart for strong acids and bases so do we assume that anything that is not there is weak?
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Re: strong vs weak
The weaker the bond in an acid, the stronger the acid is because it can dissociate easily. So, if the molecules are particularly large (have a large atomic radius), then it is more likely that it is a strong acid. There are not a lot of strong acids, so it seems likely that anything not included on that list is weak.
Hope this helps!
Hope this helps!
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Re: strong vs weak
So the strong and weak bases/acids were given to us during lecture, along with a few examples of weak/strong bases and acids. Any base and acid besides the strong ones given to us can be assumed to be weak. The main point here is that strong acids and bases completely disassociate in water, and weak ones do not.
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Re: strong vs weak
Strong acids are able to dissociate more, or completely in water. They will have longer bonds than weak acids, because longer bonds are more easily broken and can be dissociated. The example given in lecture in determining acid strength based on bond length was (weaker) HF<HCl<HBr<HI (stronger).
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Re: strong vs weak
strong acids need to dissociate easily in their solution so they will have weaker bonds than weak acids
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Re: strong vs weak
To determine whether it is a strong acid, it would dissociate more or completely under water, in order for that to happen, the bonds in a certain molecule need to be broken more easily and therefore the bonds need to be weak. This would mean that the size of the atom in an acid would mean a lot because the bigger the size (like HI vs HF) the weaker the bond, and therefore the stronger the acid it is.
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Re: strong vs weak
The longer (weaker) the bond, the more easily the atoms will disassociate protons, making the acid stronger. Thus you could identify which acid has a longer bond length in order to determine which one is stronger.
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Re: strong vs weak
Strong acids have weaker bonds meaning the larger the space in between two atoms the stronger it is.
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Re: strong vs weak
A longer bond means that it is a weaker bond, thus making the acid stronger because the atoms dissociate the protons way easier. So basically, the longer the bond, the stronger the acid. Hope this helps!
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Re: strong vs weak
Hi! Strong acids have longer bonds, which in turn are weaker and can be broken more easily. This is why strong acids more readily dissociate in water in comparison to weak acids.
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