strong vs weak

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Monica Soliman 3F
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strong vs weak

Postby Monica Soliman 3F » Thu Dec 03, 2020 7:36 pm

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?

Stuti Pradhan 2J
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Re: strong vs weak

Postby Stuti Pradhan 2J » Thu Dec 03, 2020 7:51 pm

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!

Sahaj Patel Lec3DisK
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Re: strong vs weak

Postby Sahaj Patel Lec3DisK » Thu Dec 03, 2020 8:30 pm

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.

Libby Dillon - 1A
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Re: strong vs weak

Postby Libby Dillon - 1A » Fri Dec 04, 2020 11:16 am

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).

Jason_John_2F
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Re: strong vs weak

Postby Jason_John_2F » Sat Dec 05, 2020 5:15 pm

strong acids need to dissociate easily in their solution so they will have weaker bonds than weak acids

Sophia Kalanski 1A
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Re: strong vs weak

Postby Sophia Kalanski 1A » Sun Dec 06, 2020 1:33 am

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.

Linette Choi 3L
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Re: strong vs weak

Postby Linette Choi 3L » Sun Dec 06, 2020 7:20 am

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.

Javier Perez M 1H
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Re: strong vs weak

Postby Javier Perez M 1H » Sun Dec 06, 2020 8:48 am

Strong acids have weaker bonds meaning the larger the space in between two atoms the stronger it is.

Lorraine Medina 3E
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Re: strong vs weak

Postby Lorraine Medina 3E » Sun Dec 06, 2020 8:09 pm

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!

AHUNT_1A
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Re: strong vs weak

Postby AHUNT_1A » Sun Dec 06, 2020 8:12 pm

Using this asa reference for homework 10

Ansh Patel 2I
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Re: strong vs weak

Postby Ansh Patel 2I » Sun Dec 06, 2020 8:16 pm

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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