The strange behavior of a saturated salt solutions (and what it might mean for the worlds oceans)
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- Опубліковано 1 жов 2024
- In this experiment we add excess salt to water and explore the associated temperature change as well as the saturated salt layer that forms above and around the salt. We then break down a potential explanation based on our evidence for why water cools when salt is added and get into such topics as hydration shells, endothermic reactions, electronegativity, hydrogen bonding, ionic bonding, and ocean salinity. We conclude by reflecting on the implication of desalination and the potential danger posed by returning highly saturated salt solution back to the ocean.
For your next great experiment check out this experiment that investigates everything you ever wanted to know about fire (and a few surprises as well!)
• Combustion Reactants, ...
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I'm a recovering drug addict.
Hi, recovering drug addict, I’m dad.
😑@@JesusFriedChrist
keep up the good fight!
@@flemdogscience Its crazy. I wasn't joking but I was trying to be funny by being so off topic and random. Drugs aren't as fun after 20 years of daily nonstop use. Its hell. I'm on a methadone program right now, no more needles and stuff. I moved to a new area to distance myself from certain people and connections, and got a new job, completely vanished from my old life. Its THE only way I will stay alive. I will die if I go back. Next OD I might not be so lucky to get hit with a syringe of narcan to bring me out of my overdose....
Anyways, cheers! Happy times! Lol. I just dumped some deep stuff on y'all and left. Sorry if it brought y'all down, but I want to be a success story, I WILL be apart of helping others if i ever make it out if this death loop. If I can do it literally anyone can do it. It still has to be seen if I can actually accomplish getting clean tho.... I'm ok as long as I have my 185mg of methadone a day, but idk what its gunna be like when i start getting reduced down to eventually 0mg... I'm not religious but God help me. The saddest part is that there are not a few but A LOT of people in similar situations to me. People don't understand, I've done it all, cocaine, crack, meth, etc aren't even CLOSE to as bad as opiates.
(I wonder if UA-cam will shadow ban this comment. They sometimes will not show comments like this to others. If someone replies or thumbs up it then I'll know someone else sees it) also I'll probably delete this whole thread because I'm afraid some how some way people at my new job will find out. I know that's almost impossible but I cannot mess this up.
First to coment!!, Second to like.
Really interesting video
thanks for being first! and I appreciate the encouragement!
Excellent video
hey thanks! I’m wanting to move toward a few videos you did a while back on salt water to freshwater byproducts and what to do with them. I thought of this as a sort of intro to the topic for myself to think about it a little. but your videos rock! your magnet and copper videos with eddy currents were super fun.
10:26
the saturation part is suuuuper tricky. we JUST learned abt this in my chem class though! it's not about running out of oxygens as if it is a limiting reactant. water, as a solvent, likes changing phases bc it can move around. the solute in it (NaCl) does NOT like temperature change. water in any container will naturally evaporate bc of something called vapor pressure. saturation is the point where the rate of evaporation is equal to the rate of condensation, how the water naturally rejoins the soln. i can't tell you what exactly determines the point where water can't dissolve any more salt, but i do know that it's temperature dependent bc hot and cold water have different saturation points. even if the moles of water & salt are the same, you'll have more precipitate in a cold than hot soln. i also asked my TA and he does not know what ACTUALLY determines the saturation point. so i can add this info, but i don't actually have an answer
wow! cool thoughts. you got me thinking. here are a couple thoughts I’m curious about. I’m curious what property makes NaCl not like to change temp. here is what I’m thinking about that. water has a relatively high specific heat capacity while, from what I can gather (although it didn’t seem quite clear in the article) the specific heat of NaCl was about a 1/5 of water so that suggests water takes a bit J of energy to change temp. this seems likely because the water has to break a bunch of H-bonds so it can dump a good chunk of energy into that which means the molecule itself takes even more energy to start moving faster and thus change the temp. NaCl, I think, applies incoming energy into movement a bit quicker so its temp rises faster with additional energy. temp increase in the solution adds energy needed to keep the Na and Cl apart so the same amount of water can dissolve more salt when warmer because there is enough energy present to keep them apart. that’s a lot of ramble and lot of logical jumps that could be totally wrong, so let me know more as you find things out!
😂
Miss you Flemming. Cant wait to see you hit 200k!!!
Is this one of my Honkers!? You are missed by me! Hopefully we hit that 200k some time soon...This has been a wild year of learning for me, but I haven't really been able to put a ton into the channel. Hopefully soon I'll be able to get you some bomb videos. Is the year going alright?
Hey American or not
Hello! I am an American. Where are you from?
2nd comment, 24th to like
yaya!
Röm timp? Oh you mean room temperature
you got it! it was supposed to be “room temperature”. sorry for any confusion!
Where did you get your chemistry degree?
hey cornmeal2182! my degree is in bio and ecology predominately with smattering of chem and o-chem , and a few other chem like classes. but I have fun trying to think about things I never really learned about but seem interesting! The undergrad part was at Point Loma in SD but I hit up my local JC for a year before that.
Red and blue is green
So in light mixing, red and blue makes magenta, and in pigments, normally a light red and blue can kick out a little puple color, but too dark and you can start moving toward a blackish color. I'm wondering if maybe there was a little too much pigment there. I'm wondering if perhaps the density of that salt water messed with it. What do you think?
What if there was such a layer much like the one in the video, except that it was unstable and not lasting very long, also being difficult to separate?
cool idea! are you thinking about salt solution, sort of like this one, or just any solution? I think your thought, and forgive me if I’m simplifying too much or missed the heart of it, but is what happens in diffusion. when we have a good bit of something floating around in water and the thing in water can get dissolved by water the water will move in and spread those molecules out as they flow away from each other. kind of like if you dropped a gallon of red dye in the pool. it would be sort of unstable and not last very long as diffusion led the dye to turning your pool a nice uniform red. probably don’t do that!
It's from an experiment I tried from having watched in a yt video. The video is from a brazilian home chemist aka O Nerd da Quimica, titled Sintese da Hidrazina. I'm tempted to add the link here but i dunno if youtube is down with it?
Anyways, I did everything he did except the last step of heating it in a water bath and got this weird swirling layer at the bottom of my flask. I asked ai too and it says thats what the heating step is for, to homogenize the whole thing?@@flemdogscience
red filters blue light, blue filters red light. Green gets through
I see what you are saying, yet it still seems weird to me. Normally I drop in that red and blue and..wabam!--purple. And this time it was that weird pond color. I am sort of wondering of the high salinity separated out the pigments in the dye a little. Another experiment! Thanks for your thoughts!