I Would Be Concerned If This Wasn’t The Case

I Would Be Concerned If This Wasn't The Case

Submitted by: Unknown

It’s DOUBLE the oxygen levels!!

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70 Responses to I Would Be Concerned If This Wasn’t The Case

  1. The One Guy says:

    I’m fairly certain they mean pure hydrogen (H2) not the hydrogen forming the water.

  2. Kelly Ann says:

    Ok, so….like, hydrogen in some other form? Isn’t it a gas? How would you get more hydrogen into the water unless you add more water? Then you’d have more hydrogen for sure.

    I think they probably just don’t want people in their pool.

    • boringTroll says:

      You can add free hydrogen ions, which is a fancy way of saying raise the PH, or make the water more alkaline. This isn’t what is happening here.

      You can bubble hydrogen through the water, or drop blocks of any metal from the left side of the periodic table into the water (sodium metal is the cheapest, so it is the most popular one for demos in high school science class). This can result in hazardous levels of hydrogen gas. This isn’t what is happening here.

      They’ve got the international symbol for no swimming. They wrote the sign as a joke to reinforce the no swimming sign.

      If a pool is big enough to swim in, and has hazardous chemicals in it, that means something is happening on an industrial scale. This means either a mad scientist, or a commercial operation. Commercial operations put up the appropriate international hazard signs.

    • Dr. Techie says:

      “You can add free hydrogen ions, which is a fancy way of saying raise the PH, or make the water more alkaline. ”

      Adding free hydrogen ions will LOWER the pH, making the water more acidic, less alkaline.

      But I agree, that’s not what’s happening here.

    • Name required says:

      actually changing the pH in any direction will add more hydrogen since making it more basic adds hydroxide ions, which also contains hydrogen.

    • 5150 says:

      Ah, but adding pure hydrogen makes it more acidic, whereas adding hydroxide is adding more oxygen, too.

    • Dr. Techie says:

      Right, hydroxide ions are one-half hydrogen (by atom count, not mass) and water is two-thirds hydrogen, so adding hydroxide ions decreases the ratio of hydrogen to oxygen.

    • foo says:

      after reading all these coments i can honestly say i still dont give a flying f#&k

    • Rashkavar says:

      You guys are forgetting hydrolysis. Water naturally dissociates to have 10^-7 OH- and 10^-7 H+…units are mol/L, I think. This is why the pH of neutral water is 7 – p means -log(x), and the H means x is concentration of hydrogen. pH and pOH always add up to 14, as well; it’s just how the hydrolysis reaction balances out. So when you’re adding acids (hydrogen ions), you’re also making more water since the concentration of hydroxide is reduced a corresponding amount by reaction with hydrogen to make water.

      Also, most water doesn’t contain much hydrogen in anything but atom-counting units. Oxygen accounts for 32/34 of the weight of water (assuming the protium isotope (1 proton, no neutrons) for hydrogen and the normal isotope for oxygen whose name I don’t know) Maybe the sign is cryptically saying it’s heavy water, using deuterium isotopes rather than protium, which makes for hydrogen being 4/36 instead of 2/34 of the weight (or I think so, heavy water might also include a heavy oxygen isotope), but I doubt it.

    • ChemGirl says:

      The H+ is dissolved in the water, it is not molecular. H2 is a gas. hydrogen ions are very acidic, thats why 0 on the pH scale represents H+ ions and 14 represents OH- ions.

      I dont see why it matters why its happening, it could be a million processes taking place in that tank.

    • BD says:

      Most “Mad Scientists” aren’t really scientist at all. They have no hypothesis that they are testing, no control sample usually they are out to do something specific, so they are more like “Mad Engineers”

    • Rashkavar says:

      As an engineering student, I think I can safely ask “is there any other kind?”

  3. Engineer says:

    I understand the funniness of the panel, but i’m nevertheless wondering in which context (industry?) this might make sense.
    Any idea?

  4. masterofpowah says:

    dont you mean double the HYDROGEN levels??? H2O chemistry fail

  5. mystic_eye says:

    Heavy Water? ²H2O (three hydrogen molecules to each oxygen)

    But that’s only toxic if you consume gallons and gallons of it!

    • c00p3r says:

      ummm heavy water is not water with three hydrogens…… its water that contains more than normal amounts of a hydrogen isotope called deuterium…which is heavier than normal hydrogen. Water can’t have 3 hydrogens and be water…..

    • physics_frowns_at_you says:

      Ya, heavy water is definitely not H3O.

      To clarify on c00p3r’s definition, he chemical formula of heavy water is still H2O, with two hydrogens per Oxygen atom.

      The difference is that either one or both of the hydrogen atoms in each water molecule is deuterium. Deuterium is still hydrogen, but there is an extra neutron in the nucleus, making it 1 proton 1 neutron. Normally hydrogen just has a 1 proton and 0 neutrons.

    • C31 says:

      Also written D2O (two deuterium atoms) or HDO (one deuterium atom), to distinguish it from regular water. Then there’s tritrated water…

    • Rashkavar says:

      Oddly enough, he got the proper notation for heavy water down right, then proceeded to describe what happens to free hydrogen ions in water.

    • william says:

      h202 is peroxide bleach

  6. Daria says:

    If you have any platinum on your body, even a tiny speck from jewelry, BOOM!

    Platinum catalyzes hydrogen combustion to allow it as room temperature. Otherwise you need an ignition source.

  7. Gemenon says:

    Maybe its hydrogenated water. You know like they hydrogenate vegetable oil to make margarine? Although if the water is the same consistency of margarine, swimming in it would be kinda icky.

    • Rashkavar says:

      Umm, not really possible. Hydrogenation is an organic chemistry effect. You need carbon atoms. Water is missing carbon atoms.

  8. Chemist says:

    One possibility could be the H+ ion… which would make the water acidic.

  9. Thaumh says:

    Just remember that di-hydrogen-monoxide can be fatal if inhaled.

  10. Ergle says:

    Termed in a way more people understand… high pH. Alkaline.

    Jump in for a swim and enjoy the process of suponification, where your body dissolves and your fat converts into soap.

  11. Kibidah says:

    From the look of it, that’s Waterfront Park in Louisville, KY and the sign is just a bluff to keep people from swimming it, but they do anyway. This was oddly specific.

  12. Chem nerd says:

    Well they could mean the water is abnormally acidic.
    All acids are (aq) and not (l) hence meaning they’re desolved in water allowing their Hydrogen ions to delocalised. When testing for pH we’re actually testing for the amount of hydrogen ions that exist within the liquid.

  13. Blackout says:

    I think it means that there’s large amounts of H2 in there, which is INSANELY flammable.

    • Dr. Techie says:

      Except that the solubility of H2 in water is less than 2 ppm, which is way too low to support combustion.

      I think they don’t want people swimming in the water, and have come up with a technically true but misleading way of making it sound like this water is particularly dangerous to swim in, hoping that it will be more effective than a simple “No Swimming” sign.

    • Rashkavar says:

      Technically, H2 is not flammable, it’s just explosive. That’s why, in chem labs when you have unidentified bubbles forming, you can use a burning ember to see if it’s hydrogen, oxygen or something else. If it’s hydrogen, you get a popping sound, if it’s oxygen (or a gaseous hydrocarbon like methane, but getting those assumes your in organic chem lab) the flame flares up. If the ember just dies a pitiful death, it’s something else.

  14. The Dread Baron says:

    More than likely it is to keep the masses out of the fountains and the like after several drowning incidents by using peoples fear of hydrogen and the general lack of thinking to create an aura of fear.

  15. Siirenias says:

    No swimming in the heavy water
    No singing in the acid rain~

  16. alpha 283 says:

    I’m pretty its referring to h30, what is used in nuclear reactors to cool spent rods/pellets, you can freeze it and make ice sink

  17. none says:

    H30 doesn’t exist. It’s just regular water in the cooling ponds. They use heavy water in the actual core of some reactors as a moderator. It slows down the neutrons so they’re more likely to interact with other Uranium atoms.

    • Dr. Techie says:

      Right, and heavy water is still H₂O, but the hydrogens are the deuterium isotope (or, much more rarely, tritium), so it could be written ²H₂O (or ³H₂O). Some of the deuterium in heavy-water reactors gets converted to tritium because it picks up neutrons, but ³H₂O is just a byproduct, not the primary coolant or moderator.

  18. Dave says:

    Add a single hydrogen atom to a molecule of water (with appropriate energy input) and you get two OH+ ions. Basic, not acidic.

    • Dr. Techie says:

      Multiple fail. Hydroxide ions are positive, not negative. Adding a hydrogen two a water molecule would give you three hydrogens and one oxygen; two hydroxide ions would be two oxygensand two hydrogens. You can’t even get two hydroxide ions by adding an oxygen to water; you’d have to add the extra electrons as well.

      Why are so many people who don’t know any chemistry (or even how to count, apparently) determined to advertise their ignorance in this thread?

    • Dr. Techie says:

      * Hydroxide ions are NOT positive (as you wrote) BUT negative: OH⁻.

      D**n fingers.

  19. 1:0:0:0:0:0:0:0 says:

    High levels of hydrogen indeed. There’s just under 140,000 moles of it in an olympic pool!

  20. Chemist says:

    They could have just gone for the usual: Danger, acidic pool! sign, but NOOOOO.

  21. floydboy says:

    What’s wrong with this? I assume the person who posted this was thinking “oh H2O it’s already got hydrogen in it lololol” but they are wrong. Any person with a high-school education knows that when elements bond, they lose their properties and form new substances. Thus, if there actually WAS dangerous levels of hydrogen in the water, it would be very unhealthy.

    • Rashkavar says:

      Not quite so. Ever heard of methylated mercury? Ever heard of using pure mercury as a laxative, as long as you don’t inhale the fumes?

      The first is the type of mercury that causes mercury poisoning when eaten, while elemental mercury is perfectly safe to ingest, as long as you don’t breathe for the few seconds it takes for it to get from near your mouth to your stomach, as the fumes also cause mercury poisoning.

      Many properties of elements, especially when related to biochemistry as it would have to be for the levels of hydrogen to be considered dangerous, carry on into the compounds containing them.

  22. ckret2 says:

    Ahhh, I read an article about the “dihydrogen monoxide” gag that referenced this sign.

    Yes, the sign is actually referring to the hydrogen in H2O. They’ve stuck the sign up because they have problems with people swimming and figure that if threats of legal sanctions won’t keep them out, maybe threats of some “dangerous chemical” will keep them out. They’re hoping that people will either not figure out “hydrogen is in H2O,” or else they’ll over-think it. Y’know, like half the comments here are doing.

    Wish I could find that article again, I’d link it here.

  23. bigmekanik says:

    EEEEEEHHHHHnt! wrong answer… The problem w/ the swimming is that the hydrogen (in whatever form, probably in solution….) causes the density of the water to be much lighter. This happens when a gas is added to the bottom of a pool….. Last year Marathon refinery in garyville, la, had a fatality when an plant operator drove off of the road in a rain storm, into an aerated settling pond and got trapped on the roof of his truck. When he tried to swim to the bank, he immediately sank to the bottom and was unable to come up to get a breath. Needless to say, he drowned. It was tragic, but there were signs similar to this posted on the bank of the pond. This is an industrial setting, not a prank sign.

    • Rashkavar says:

      I notice a distinct lack of bubbles in the pool to the right of the sign. Also, if aeration was the problem, the sign would not specifically say it is hydrogen. And finally, I don’t think you *can* aerate water with hydrogen. Oxygen, yes. Nitrogen, yes. Air, being made primarily of the previous 2 things, yes. Hydrogen, no – water molecules do very interesting things with hydrogen atoms.

    • bigmekanik says:

      um… if u flow a gas into a liquid its aeration… and all I see is a picture of the signs on a wall, and a staircase…. what pool do you c?

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