Strong acids
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Re: Strong acids
And if you are ever asked which acid is stronger than another, remember the elements with a smaller atomic radii is stronger since it has a shorter bond with H, which is requires more energy to break.
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Re: Strong acids
claire ikemiya_2I wrote:And if you are ever asked which acid is stronger than another, remember the elements with a smaller atomic radii is stronger since it has a shorter bond with H, which is requires more energy to break.
This is so helpful, thank you!
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Re: Strong acids
I actually think the atom with the larger radius is the "stronger" acid because the bonds are more easily broken (longer bonds = weaker bonds). This is why HF is considered a weaker acid than HI.
If we look at the group 17 acids, HF<HCl<HBr<HI in terms of acidity. Remember that the weak/strong measurements determine how easily the chemical makes H3O+, so the weaker the bond the stronger the acid.
If we look at the group 17 acids, HF<HCl<HBr<HI in terms of acidity. Remember that the weak/strong measurements determine how easily the chemical makes H3O+, so the weaker the bond the stronger the acid.
Re: Strong acids
That is correct. The longer the bond is the easier it can be broken and make up an acid. However, if the atom is not straight up connected to H but it is connected to H through another atom such as O, then it is based on electronegativity, where the more electronegative the atom is, the stronger it pulls electrons, thus making a stronger acid.
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Re: Strong acids
Thank you for all your responses. They are helpful for me to distinguish some strong acids.
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Re: Strong acids
Memorizing them is a good way to go but if it is too difficult to remember all 7 acids, a good way is to remember the phrase "Sorry I Brought No Clean Clothese" where each of the underlined correlates to one of the strong acids.
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