Test acids with home-made pH indicator | Live Experiments (Ep 35) | Head Squeeze
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- Опубліковано 11 чер 2013
- WARNING: This experiment uses corrosive materials. Use protective gloves.
Jon Chase creates his own acidity indicator and then tests a series of household products.
What are Acids:
www.chemguide.co.uk/basicorg/a...
Acid Indicators:
chemistry.about.com/od/acidsba...
Red Cabbage indicator:
chemistry.about.com/od/acidsba...
Household acids and bases:
web2.newtown-h.schools.nsw.edu...
You need:
Red Cabbage
Water
Knife/ Blender
Ice Cube trays
Household ingredients
Sieve
Jug
Six clear glasses
Rubber gloves
Instructions:
Chop up cabbage
Put cabbage in blender with some water
Strain solution into a bowl using the jug
Pour your household ingredients in to the glasses
Leave one glass empty
Add the cabbage solution
Live Experiments: Our resident science demo thrill-seekers will give the UA-cam audience their big science treat each week with an experiment where you can find out how to make food dance, power a light bulb with household objects and create mega smoke rings!
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who is here from online school? I am, I hope everyone had a good Christmas and I love your accent mister 👏🏻
me
Boredddd.z😒
Meh
me
Me hehe
Huh, I've noticed before that whenever I make a batch of Kimchi out of red cabbage it gradually changes color from dark muddy purple to florescent pink over the course of a week as it ferments and sours. Now I know why!
Use ethanol i made two batches and with ethanol i made it Last longer
I love this guy, please keep him around for more!
"if you ain't old enough to use a knife, BE CAREFUL, and you are old enough to use a knife, BE CAREFUL" this dude has me ded
I like your experiment and also how to speak.
Awesome stuff!
Haha, yeah. I laughed at that part. I really like this guy. He's very enthusiastic about what he does.. and that accent..
Good experiment, and good explanation. I would however want him to stress the fact that you never put the water into the acid. It is always the other way around, since otherwise, the reaction can be very exothermic and start to boil and splashing acid around. It is good to reinforce these points early so they are in the back of peoples minds when they start to experiment with more concentrated solutions or heavier stuff.
Peace!
excellent lighting
Great stuff, instructive and funny. I just had roasted goose with red cabbage and did the experiment
I like this guy a lot.
Friends and I derped around during lab for our acids/bases lessons and we managed to mix something that smelled and looked like red wine! Had a bunch of indicators like blue pea flower, red cabbage, and a lot of random chemicals available on the bench like sodium hydroxide, hydrochloric acid, methyl orange, etc. It was super fun! :D
when i first saw the guy...i thought its about LSD
agreed, I like the the shaky style, brings life to the video
Acids and Bases was the thing that got me into science, I liked the chemical reactions :)
That was awesome! ^.^
This guy is the best one
This guy is awesome
Thanks. My homework in chemistry is now DONE! :))
cool experiment!!!!!
This helped me with my school project
This guy is really cool
Straight up G
Perfect presenter
QUICK!! SOMEONE GET THIS DUDE A GODDAMN MEDAL!!!!!
Title and thumbnail instantly goes to the mindset of drugs with the start kind of playing into that thought, even though knowing it isn't the case, hehe.
this was cool
I like this guy more with him in please!!!
If you mixed any of those acid with the base, would the reaction be the same? I'm thinking of trying it
no, it would make salt and water
Cool!
Yeah I agree. I literally cannot notice the shakeycam if I am actually watching the guy on screen rather than looking at the edges. I can look back and forth and it's instantaneous; edges=shakey, center=normal.
Either one of two things is happening; a) some people are unusually sensitive to movement, or b) it's youtube and the comments section exists for people to complain about trivial things.
... maybe both are true.
More this guy
Instructions unclear do I use the knife on myself while being careful not to cut the air
This was insanely simple. But still interesting.
how long will that cabbage juice store for? what's the best way to store it? the refrigerator? freezer? thanks
30 min-2hours
in the Us the fluoride in the water changes the Ph lvls here.
what can i use instead of cabbage
My teacher made me hear this
same
Trippin' on acid
Muy pro y hacker lo recomiendo 🙂
I cut my hand off with the knife then stuck my stump into the blender :( not a good day. Need more warnings :D
I'm on it.
You'd think that BBC has way better equipment than a simple tripod.
Erm no color chart i.e. what each color means? and ph lvl for a color or red cabbage?
i learnt this stuff is school haha :) you can also get special paper
Does beetroot work??
did you use neutral water cuz not all waters ph is at 7 most are acidic or alkaline
See where he uses the gloves?
Very interesting! just one thing... 0 to 14... not 1 to 14
i want this guy to be my chemistry teacher
is vineget a good ph down solution for plants?
I believe so
Good idea
i actualy scored an A+ in kemistry.. by doing this in the relation to acids and bases :-D
I knew exactly what he was going to do when he said red cabbage.
Worth noting that water is RARELY neuteral (tap water, for example, contains trace amounts of Fluorine which is acidic).
Just because it wouldn't change the colour of your indicator, doesn't mean it's PH-neuteral... just that it's the same PH as the water your indicator was disolved within. If you took two different water sources (bottled and tap, for example) the indicator may indeed change colour slightly as one will likely have a different PH to the other.
Great video. I would have liked to see the reaction of something known to be an acid like lemon juice or actual acid like sulfuric acid.
Come on dude, your slipping. lol
Done know!
be my science teacher now
water is not neutral unless filtered propperly, my tap water comes out at a ph of 4.. filtered 7
His methlab really helps to use chemistrys theorys into praxis.
P.S. Hes good!
idid this when i was 11 in secondary [high] school.. But its cool.
where and how did the shirt change ?
Tyler Bell look at the word nerd
Please for the love of god, get a tripod for that camera! I do really want to wish these experiments but the only thing I'm currently testing is my stomach acid from all this motion sickness.
Absolutely loving this, fantastic presenter, but i just kindly alerted a teenager of an older target audience than this video to please not pick up a pile of powdered sodium hydroxide between his bare fingers. Be playful but a drop of that lye declogger could put an eye out so do drop warnings. A playful way to do this is to flash hazmat symbols with a buzzer briefly over the products of substantial risk, they will have memorized it in no time at all and its a visual serious reminder that doesnt alter the pleasant flow of the demonstration. it conditions the kids to have safety on their mind when handling reactive substances. Most lab accidents happen because of routine overriding care.
the solution should be 50/50 if you want to be exact.
i live in the south east england...
At the end haha
I kinda missed when he talked about "what they are" and "how they work".
This is coolio WOW
Mirror t shirt
Also next time I'd like to know how acid (as in the drug) works.
0:16 straight G's say 'essperament'
last time i checked im still alive
a question to James May : How important are tripods... and can you make a science show without one
4:12 lmao
I think there is still some acid rattling round inside me.
the middle between 1 and 14 is 7.5: acid is generally 0
Why would that be offensive?
lol a tripod jesus hahahaha
His t-shirt didn't change you just mirrored the video
He's not "gangsta", I agree, but he's almost certainly from a West Indies (Caribbean) background. Lots of people from those places moved to the UK in the 70s, and they have a distinct accent which sounds a lot like "gangsta" accent, but is distinct from it.
Well, maybe "gangsta" culture is trying to imitate Caribbean accent, I don't know. At any rate, it doesn't concern Jon.
I love this shit
Anyone else doing this in Science at Lpa
Yasssssss
We've also got poisonous acid.
Did anyone see the shirt change without having to turn back?
I don't know actually.Some people just get offended easily..
No gloves?
Jeeeeeezzzzzzzz boomer
how to make lean
snoop dogg talks about acid....
i have to admit i had a very wrong thought when i click this video....
But with a tripod and auto-focus, you don't really need a cameraman anymore. Let the guy have a job.
Dunkno
you are fantastic! if i had had you as my chem teacher is H.S. , i might have actually gotten interested in it. that didn’t happen til college, where i pretty well as Chem. and just OK at organic Chem. but it was very interesting and i loved the lab experiments.
so thanks for this a whole lot!! :) ⚗️🧪👩🏾🔬 🧫👩🏽🔬 🧪🌹🌱
i don’t quite get what you put in the ice cube trays though.
is this channel made for the younger ones ?
1:58
Does it really bug people that much? He's moving around a lot anyway I hardly notice it unless I specifically look at the edge of the screen, and there's no reason to do that seeing as all the interesting stuff happens in the center where it's all being moved around anyway.
1.58
Hmmmmmm not exactly.
Taking time out of chemistry alevel to watch this....
How is it misleading? He's showing how to test the acidity with a "home made" PH indicator. The title is exactly what the video was about.
No offense but when he said "Let's talk about acid..." for a split second the i thought of LSD.haha oops.
lol