H vs H3O

[305561744]

I've always seen acidity written as -log[H+]. Is this different than -log[H3O+]?

[Isabel Carden 1E]

Hi!

H3O+ is just H+ bonded to a water molecule, so I believe they mean the same thing since you would have the same concentration of H+ as you would H3O+.

Hope this helps!

[Grace Chen 3F]

They are the same. H+ is just an easier way of expressing H3O+. When we write H+, it actually refers to the H+ molecule that is bonded to a water molecule, which results in H3O+.

[Srikar_Chintala_1E]

Nope! They are the exact same :)

[Nicole Ton 3C]

In this context they are the same thing. When the demonstrations of acids and bases show H+, they really mean H3O+ because the reactions happen because of water.

[Madison Rhynhart 3H]

No they are the same thing! It is just easier to write H3O+ as H+ as a shorthand but both are the same as H3O+ is adding an extra H+ ion to a water molecule therefore denoted as the extra H+ ion.

[Jiayin Yola Yan 1G]

They are interchangable!

[Veronica Larson- 1I]

They're the same thing in this context, we just use H+ usually but because it's actually referring to an H+ bonded to water it's the same thing as saying H3O+ in an acid base reaction.

[Ivy Vo Dis 1C]

Hi! In the equation -log[H3O+], the H3O is referring to the entire molecule of the H+ being bonded to the molecule of water. Meanwhile, in -log[H+], the H is referring specifically to the Hydrogen atom that is being bonded with the H3O molecule. The concentrations of H+ and H3O+ would be equal, so these equations are essentially the same.

[Jessica Arcos 2H]

Hi! I believe they mean the same thing. H3O+ just refers to the whole molecule while H+ refers to the single hydrogen atom but they are essentially the same thing.

[Kelly_Luong_1F]

H+ and H3O+ can be used interchangeably as the H+ is joined to a water molecule.

[Eric Sun 2G]

H+ is essentially the same as H3O+ except that H3O+ explicitly indicates that an H+ is attached to a H2O molecule. I believe that we can write it as H+ because typically we would write it as H+(aq) which implies that there is already water attached to it. I could be mistaken though.

[Tony Chen 1F]

H3O+ is H+ in water, which is what we will be working with more in biology

[Rachel Bartley 2B]

H+ and H3O+ are the same and can be used interchangeably. H3O+ just refers to H+ bonded to a water molecule.

[michaelcrisera]

H+ and H3O+ are interchangeable ions. The H+ notation only accounts for the proton donated by an acid, while the Hydronium ion notation, H3O+, accounts for the donated proton as well as the water molecule that accepts it. This means that -log[H+] is equivalent to -log[H3O+].

[Milli Zunich 3I]

They're the same!

[Amanda Dankberg 1B]

They both mean the same thing. H3O is just H bonded with a water molecule

[Renga Rengappa 1D]

In the context of pH calculation, it's the same.

[Megan Cai 1H]

These represent the same things but they are just represented differently. They both represent the proton concentration but H3O+ is just the proton H+ attached to water H20

[Ryan Lafferty 1L]

The two are the exact same and are interchangeable!

[Madelyn_Rios_2c]

They are interchangeable. H3O+ is just H+ bonded to water.

[Wenhan Li_3d]

They are essentially the same but H3O bond to a water molecule.

[Sean Basu 2B]

No, they are the same thing!

[Sabira Mohammed 3I]

Hi, in this context they're pretty much the same and can be used interchangeably. The H+ is just the H bonded to the water molecule.

[Vanessa Wiratmo 3k]

Hello,

These can be used interchangeably. [H+] is just showing the hydrogen on its own and [H3O+] shows that the hydrogen is bonded to a water molecule. Either way, it is showing the hydrogen and its charge.

[Cory Poon 3G]

Nope! H+ and H3O+ can be used interchangeably. We typically see it written as H+, but usually, the H+ is bonded to a water molecule, making it H3O+.

[Sarah Lesmeister 2F]

They are the same thing. H3O+ just indicates that it is bonded to a water molecule.

[kareena_prasad]

No. They are the same.

[205819952]

They are the same

[Parinita Jithendra 2A]

they are the same thing and you should get the same answer. we get H+ ions from H30 and that is why they are interchangeable

[Jessica Servoss 1H]

H+ and H3O+ are the same thing. Both represent a proton being exchanged, but writing H3O+ is the more descriptive way of writing it as it shows that water gained that proton.

[Grant_2A]

they are the same, H30 is just h when bonded with water but they serve the same purpose and are therefore interchangeable!

[Jessica Li 1G]

They mean the same thing, the only difference is that H3O+ is bonded to a water molecule.

[Sami Ryan 1G]

As everyone above said, they are the same thing. However, you're much more likely to find H30+ rather than H+ because it is unusual for just a proton to be floating about - it can't really exist in water on its own, and is quickly joined into a water molecule to make H30.

[Darlene Luu 1H]

H+ and H3O+ are the same/interchangeable.

[Carmen Kim 3I]

Hi,
-log[H+] is the same thing as log[H3O+]. Using H+ is a more simple way to express, but they are interchangeable.

[905701360]

You can use one or the other. They are interchangeable.

[Genelle Marcelino-Searles 2G]

H+ is just a shortened version of H3O+!

[905744270]

Yeah H+ and H3O+ are interchangeable... just different notations

[Vashe Sundar 3H]

They're the same! H+ indicates the proton, whereas H3O indicates the proton bonded with water.

[Emily Hou 1H]

They are the same and interchangeable! H3O+ just indicates that the proton is being bonded to water

[NaomiAbramowicz1H]

People tend to write it as H+ because it is implied that it is bonded as H3O.

[Brenda Tran 3C]

They are both the same! H30+ is H20 + another hydrogen, so H+ represents the hydrogen that is added to water.

[Iman Gauhar 3E]

Hi! My TA said that H+ and H3O+ are used interchangeably.

[Neha Jonnalagadda 2D]

They basically mean the same thing, H3O is just H+ bonded to a water molecule.

[Trisha Nagin]

H3O+ is H+ bonded to a water molecule but they are basically interchangeable here.

[Ashley Presnell 1C]

They mean the same thing as it just shows the concentration of protons that were gained in a reaction so either H+ or how it is added to water molecules H20 --> H3O+. Both represent the same value when calculating pH of a solution.

[Morgan Micallef 1A]

They are the same! H+ is just a simplified way to write H3O+

[kiara chan]

No, if you see [H+] or [H3O+], just know they're essentially the same thing b/c H3O+ is just the H+ binding w/ the water molecule in an acid base reaction.

[205819952]

H+ and H3O+ are the same and can be used interchangeably

[Claire Kim 1F]

I've always seen acidity written as -log[H+]. Is this different than -log[H3O+]?

I believe it is the same and H3O+ simply has a water molecule attached to H+.

[Gavin Trent 2F]

Its the same thing, people just tend to use H+ as shorthand. I also learned it this way.

[Matthew Nguyen 3G]

They mean the same thing! H+ is just the shorten version.

[Jonathan Shyu 3L]

They are exactly the same!

[joshua_quinn_1C]

H and H3O are the same. H is just shorthand for H3O. Hope this helps!

[eve444]

they're the same thing. both are correct, i believe it boils down to preference.

[Sidharth Paparaju 3B]

Both are same; H+ does not usually just exist by itself since the Hydrogen does not pop off the acid, but rather is taken by a water molecule (hence H30+).

[masontsang]

Hi! H3O+ and H+ are the same (and are interchangeable based on preference), so -log[H3O+] and -log[H+] are the same! I hope this helps!

[masontsang]

Hi! H3O+ and H+ are the same (and are interchangeable based on preference), so -log[H3O+] and -log[H+] are the same! I hope this helps!

[Nataly Antonova 1B]

It is the same thing just in a different notation. H+ is a proton while H₃O+ is just this very proton bonded to a water molecule. Both can be used interchangeably unless stated otherwise

[HaleyC 2F]

H3O+ and H+ are interchangeable because they are the same thing.

[Mario Prado 1K]

Hello,

In our class H+ and H3O are basically interchangeable in the way you use them

Hope this helps.

[Lizzy Bulla 3K]

H+ and H3O+ are very similar! You can honestly use them interchangeably in this case.

[Palig Kechichian 3F]

They're basically the same because by H+, we mean the proton that is being transferred

[405825570]

They are basically the same thing, H+ is attached to water in an aqueous solution to make H3O+, but we often only look at H+ because it affects the pH.

[Nicolas Zarco 2K]

H+ is interchangeable with H3O+. H3O+ is merely showing that H2O is what gains a proton, H+.

[Arshaun Faraji 2H]

No, its just faster to write H+ so we do that. But they are essentially representing the same thing. Nothing you should worry too much about.

[Josh Richter 2C]

Calculations wise, it should be the same. However, H3O+ is potentially more accurate because there will be no hydrogen ions that are unattached in the solution.

[Lilian Doan 1c]

Hi! H+ and H3O+ are often used interchangeably as the concentration of hydrogen ions to calculate the pH. However, a more accurate representation is H3O+ since it represents an hydrogen ion attached to a water molecule as they do not exist unattached in aqueous solutions! They exist as hydronium ions.

[Gabriela Alfaro]

They would be the same. It is just that H+ in water would interact with the water molecules (H2O), thus why it is represented as H3O+.

[Mehreen_Suzaan_1A]

They are the same because H3O is just water bonded to the H+ and water is does not change the amount