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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 3 months ago

Is water an acid or a base?

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Is water an acid or a base?

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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 3 months ago
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  • Lvxferre [he/him]@mander.xyz
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    3 months ago

    “I’m whatever you aren’t, you fucker” - water, to the substance you mixed with it.

  • humanspiral@lemmy.ca
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    3 months ago

    H2O is neutral PH, and so answer is no. But then water tends to have a bunch of shit disolved in it. So answer is yes.

    A self-contradicting proposition based on ambiguity of definition of water, of all things. This statement can be used to make HAL explode.

    • MunkyNutts@lemmy.world
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      3 months ago

      If you take into consideration the self-ionization of water, it’s both, at the same time.

      2 H2O -> H3O+ + -OH

      • humanspiral@lemmy.ca
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        3 months ago

        AFAIU, it doesn’t change the PH neutrality.

        I understand that they self combine/react again? But is that reaction still water?

        • NielsBohron@lemmy.world
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          3 months ago

          Autoionization and the reverse reaction are constantly happening in water, and when the reaction is happening at the same rate forward and backward the system is said to be “at dynamic equilibrium” (aka, stuff is happening, but there’s no net change)

          In pure water, the equilibrium concentration of hydronium and hydroxide are equal, so it’s said to be neutral. At room temperature, that equilibrium concentration is approximately 1*10^-7 moles per liter, which gives a pH of 7 (since pH is defined as the negative log _10 of hydronium concentration)

    • Rob1992@lemmy.world
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      3 months ago

      It’s not neutral, pure water is slightly acidic due to free hydrogen

  • Geodad@lemm.ee
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    2 months ago

    deleted by creator

    • Natanael@infosec.pub
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      3 months ago

      Inclusive or

  • Someonelol@lemmy.dbzer0.com
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    3 months ago

    Little bits of it oscillate between hydronium and hydroxide so a little of both but not enough to make a difference.

    • NielsBohron@lemmy.world
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      3 months ago

      That’s why the meme works. It’s not because water autoionizes; it’s because water is amphoteric, meaning it can act as either a Brønsted-Lowry acid or BL base depending on what what it’s reacting with. Put water with ammonia, and water acts as an acid. Put water with acetic acid, and it acts as a base

      Source: I teach college chemistry

      • AnarchistArtificer@slrpnk.net
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        3 months ago

        Water is so cool. I like how the hydrophobic effects drives protein folding

        • TheOakTree@lemm.ee
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          3 months ago

          I once brought up in a family dinner how incredible and strange water is, and how we don’t really think about it.

          It appears naturally in all three phases, expands when frozen, has a high surface tension, has a high specific heat, and can behave as a mild base or acid. Oh, and all the living stuff has water in it.

          Nobody really understood what I meant except my sister.

          • JATth@lemmy.world
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            3 months ago

            Do you know about ortho/para-H2O? It only gets weirder.

            • TheOakTree@lemm.ee
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              3 months ago

              Neat, I will be saving this and reading it when I’m less busy… maybe I’ll get back to you on it.

          • SolarMonkey@slrpnk.net
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            3 months ago

            If it makes you feel any better, I totally get it.

            I’ve thought many times how different the universe would be (would complex life on earth even work the same way???) if frozen water became more dense and sank like most frozen substances.

    • MonkderVierte@lemmy.ml
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      deleted by creator

      • NielsBohron@lemmy.world
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        3 months ago

        Kinda, but not really. Deuterium exists naturally in more or less the ratio as it has since the solar system first coalesced.

        Also, deuterium is a component of heavy water, but the term “deuterium” actually referred to the specific isotope of hydrogen where the nucleus consists of one proton and one neutron, as opposed to a single proton (which is the more common isotope)

  • I_am_10_squirrels@beehaw.org
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    3 months ago

    Yes

  • Knacht @lemmy.world
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    3 months ago

    Do you mean dihydrogen monoxide?

    • AllNewTypeFace@leminal.space
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      3 months ago

      also known as hydric acid

  • 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 @pawb.social
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    3 months ago

    What is the PH of the water? 🤔

    • spicystraw@lemmy.world
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      3 months ago

      About 7. Fun fact i did not know before research, at 100 C waters pH can go as low as 6.14.

      https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Acids_and_Bases/Acids_and_Bases_in_Aqueous_Solutions/The_pH_Scale/Temperature_Dependence_of_the_pH_of_pure_Water

      • MTK@lemmy.world
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        3 months ago

        Oh! So that’s why hot water burns you!

        • nyctre@lemmy.world
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          3 months ago

          I know it’s a joke and all, but it’s not just the pH that makes something burn. A regular coke has a pH of around 2.5, for example.

          • FooBarrington@lemmy.world
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            3 months ago

            Oh yeah? Then explain the sensation my sphincter feels upon butt-chugging three cans of coke, smart guy?

            • nyctre@lemmy.world
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              3 months ago

              I believe that’s caused by the CO2, but I’d have to test to be sure, brb.

              • FooBarrington@lemmy.world
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                3 months ago

                They still aren’t back… Oh god, did you do 4 cans?! Everyone knows you can’t do 4 cans!

                • nyctre@lemmy.world
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                  3 months ago

                  Now you tell me?!

  • lugal@sopuli.xyz
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    3 months ago

    Is this about the anomaly of water? I vaguely remember it from school

    • Una@europe.pub
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      3 months ago

      No, this is about water being amphoteric compound meaning it behaves like a acid or base in different circumstances.

      https://en.m.wikipedia.org/wiki/Amphoterism

      • I_am_10_squirrels@beehaw.org
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        3 months ago

        You mean it lives on land and in the pond?

  • 21Cabbage@lemmynsfw.com
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    3 months ago

    Isn’t water itself the pretty literal definition of 0 and it doesn’t become one or the other until it’s a solution with something else?

    • unalivejoy@lemm.ee
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      3 months ago

      Water is the definition of 7.

      • CookieOfFortune@lemmy.world
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        3 months ago

        Also I’m pretty sure it’s only coincidentally 7. The calculation for pH isn’t based on any property of water.

      • 21Cabbage@lemmynsfw.com
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        3 months ago

        Right, whatever the midpoint was. It’s been a minute since my last chemistry class.

  • Nightwatch Admin@feddit.nl
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    3 months ago

    It is the final frontier for either, your meme could have been so much more interesting. SAD.

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