The Sci Guys: Science at Home - SE1 - EP7: Hot Ice - Exothermic Reactions and Supercooled solutions
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- Опубликовано: 13 сен 2024
- Welcome to the seventh episode of The Sci guys. In this episode we will be investigating an experiment involving exothermic reactions and supercooled solutions by creating hot ice. We will show you how you can explore this topic at home with a bunch of simple household items.
Help support us to do more experiments by becoming a patron on patreon: / thesciguys
Equipment and Ingredients:
2L Vinegar
8.5 tbs or 140g of Baking Soda
Water
Lots of Ice Cubes
Measuring Cups
Measuring Spoons
Pot
Glass Bowl with Liquid Seal Lid
Elastic Band
Gloves
Goggles
Lab Coat or Apron
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It is great the way you guys show the actual molecular changes that take place. Easy to understand and great for teaching purposes. Thanks!
+PJC PJC You're very welcome!! Glad you enjoyed it
mann these guys should have way more views
thankyou soo much this helped a lot for my science fair experiment
Thanks :) If you have any suggestions of other cool experiments or concepts you would like us to do an episode on let us know.
I'm sure someone has said this some time in the last 8 years, but I'll say it again. At 4:30 you don't have a supercooled liquid, you have a supersaturated solution. If it were a supercooled liquid, you would get ice (solid water) forming and not sodium acetate. This is pretty easy to do at home, too. Just put some liquid water into the freezer and wait until its temperature is below freezing but it hasn't turned to ice yet. Take it out of the freezer and pour it onto an ice cube and it will instantly freeze.
Great explanation 👍👍 remarkable video
Thank you guys
Your explanation removed my problems
Thank you
Thanks!! As long as people watch we will keep making episodes.
awesome video!!!!
Thanks :) We are growing slowly. We are at around 80ish subscribers and at this point it is all about getting exposure anyway we can. We did get to go on breakfast television here locally one morning and that was fun.
lol u mean 31K?
no, like 76k.
watching this 9 yrs later
I added a link to the show clip in the description to this video.
Thanks
Keep it up people.
Could you heat the crystallized solution using a microwave in order to repeat the crystallization process?
I wonder if this experiment can be used with a thermoelectric generator to create electricity.
Wow he clearly likes it!
what temperature should you boil at
Thank you
what are the variables....pls answer ASAP!!??
After my solution boiled for an our, the baking soda started to build up on the surface. Does that mean I put in too much baking soda?
+Jana Neethling did it look like a powder or crystals?
+The Sci Guys a powder. That's why I think I maybe put in too much. Our measuring cups show the amount in millimeter and not grams so I probably converted it wrong.
Amazing :D
Can you do an endothermic reaction in your next video
Sir, is it necessary that all cooling reactions to be exothermic? If it released heat will it consider as increase in temperature?
Exothermic reactions gives out heat.... That doesn't mean it happens in high temperature.... For exothermic reactions to occur they need less temperature ( Le chatelier's principle)
If you still have doubt.... Just think like this,,,,,, Exothermic reactions gives out heat that means they didn't like heat(usually we throw out things that we dont like) so in order for that to occur they need favourable condition... Here they don't like heat... Hence the favourable condition is a low temperature🌡️
Hello! Great experiment. But would you know what happens if you would use a higher concentration of vinegar, say 30%?
Why doesn't the solution freeze when you put it in the ice bath or the fridge? Why does it wait until it's disturbed?
My solution turned yellow while boiling, will this affect the resulting reaction?
and how can I make a graph (of the discussion of the results).....pls help its for a tsk :_(
great!!
At 5:15 you said you measured the temperature of the reaction. what instrument did you use to do that? just a thermometer? and where did you stick it???
+Will McGlone We used a thermometer. We just stuck it into the crystal area.
The Sci Guys inside the crystal area? or just above - in the surrounding space? Would you suggest using a temperature probe or something like that? (I'm doing this for my science fair project :) )
We just stuck it into the middle of the solution to try and get the temperature from the middle where it would probably be hottest. I would say use what ever tool gives you the most accurate temperature for this situation. In our case a digital thermometer was accurate enough for what we wanted to record.
+The Sci Guys Thank you! you guys are clutch
+Will McGlone You're most welcome.
at 0:48 where did you get your glass container from? or where can i get it? PLEASE REPLY FAST +The Sci Guys
+Patience Patience It's just pyrex cookwear
Would it make sense to put salt in the ice bath
if you are putting the. mixture in a freezer how long would you need to leave it for
can you pls state what is observed......the results....and the conclusion pls
Is this a chemical or physical change
can i use bicarbonate soda instead of baking soda
Can you make a video about how fuel cells work, or help me understand? That would mean the world to me.
esteban betancourt Sorry for the delayed response, I didn't get a notification of your post. I will add this to our list of videos to make, we will be starting up a new series of videos. It will be a series of science talks/explanations that don't necessary have an experiment attached.
Oh that's how supercooling works.
Ryan from ace familyyyy??? We had to watch this in school
can you please tell me what the chemical equation is?
will apple cider vinegar work in this experiment. PLEASE REPLY AS QUICKLY AS POSSIBLE. +The Sci Guys
+Patience Patience As long as it has the same amount of the acid as normal vinegar than it should work. It may just colour the membrane a different colour.
This is so cool! And I'm a gamer who never does science!
how can i produce a 200 degrees exothermic reaction?
Is there anywhere that you know of that I can find an experiment report for this experiment?
+Kelsi Chomse we plan to eventually have write ups for all our experiments but it won't be for a while and I am not sure where you could find one.
This might help. chemistry.about.com/od/homeexperiments/a/make-hot-ice-sodium-acetate.htm
How many hours it takes to boil?
+mariam ahmed It depends on how white you want the liquid to be. If you don't care if it turns brown then around an hour. If you boil it under much lower heat than it can take 4-6 hours but will come out white.
what is the question of this expiremet
+ The Sci Guys
how long did the reaction take. +The Sci Guys. reply fast
+Patience Patience Well depends on how much liquid you have. It happened decently fast maybe like 30 seconds to fully crystallize
THX
I just did this at school and used a lot less and boiled it on a hot place. It wasnt ready by the end of class, but after an hour i went back to lunch it was crystalized on the hot plate. Im not sure if my teacher caused the reaction himself or it crystalized by itself. Would you mind sharing your thoughts?
Herman Sample Well from the information you have given me, it sounds like either the reaction occurred while you were out of the room or your solution boiled down dry. If the solution looked like the one in our video then the reaction probably occurred while you were out of the room. If it looked dry and crystalline then I would assume it boiled dry.
It was completely white and crystalized
Sounds like it may have boiled dry. I cannot be 100% sure about that since I am just running of the info you have given me. This can happen to salt water as well, if you boil salt water long enough all that will be left is salt in the pot.
So what do i do with it?
Herman Sample Hmm well you may need to start over. You could try and add little bits of hot water and try and mix the crystals back in but I think you will have the most success through starting from scratch.
I once did it but it didn't work
1:59
+The Sci Guys answer my questions pls..below
whats the aim of this experiment?
Shabeer Joosub To explore exothermic reactions/transformations, spontaneous crystallization and super saturated solutions. By making a super saturated solution of sodium acetate also known as hot ice. I hope that is what you are looking for.
Why
+theradjay because?
Its a cool demo, but it's not a reaction. It's an exothermic process, but the crystallization not a chemical reaction.
ummak science guy
Cool! Er... Hot!
siblings..
this is helpful but the explanation is not satisfied- can be more precise
This is technically not a reaction. Its a physical change/transformation
send help
You guys list this as an exothermic reaction, when it gives off heat which is actually endothermic.
+Spencer Beckley You are incorrect. An exothermic reaction is one that releases heat and an endothermic reaction is a reaction that absorbs heat.