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Science Xperiments | sXp
Registrace 30. 03. 2009
A piece of webspace for Mr Williams to upload some science videos that'll hopefully help with exam revision or just for the sake of science.
Flame Tests - Identifying Metal Ions
How do you identify the positive metal ions in a compound? Put them in a fire and see what colour the flame becomes!
The textbook flame colours are listed below (and on the video) and they're pretty accurate in real life but, in some cases, the camera doesn't pick up the colours exactly as they should be. Calcium salt in particular isn't as good as it is in reality because the red is not as intense.
Flame Test Colours:
Lithium ion: scarlet-red flame
Sodium ion: yellow-orange flame
Potassium ion: lilac flame
Calcium ion: brick-red flame
Barium ion: apple-green flame
The textbook flame colours are listed below (and on the video) and they're pretty accurate in real life but, in some cases, the camera doesn't pick up the colours exactly as they should be. Calcium salt in particular isn't as good as it is in reality because the red is not as intense.
Flame Test Colours:
Lithium ion: scarlet-red flame
Sodium ion: yellow-orange flame
Potassium ion: lilac flame
Calcium ion: brick-red flame
Barium ion: apple-green flame
zhlédnutí: 40 938
Video
Titration (using phenolphthalein)
zhlédnutí 1,6MPřed 13 lety
For those who have not noticed the previous comments about the accuracy in the video: This video was made as a quick guide for one of my classes about what a titration is and it wasn't meant to be an exact representation since that would have taken longer and I wanted to get to the end point faster so they could see what happens. I explained to them that it would need to be done more accurately...
Gas Tests
zhlédnutí 230KPřed 14 lety
Demonstrating the tests for oxygen, hydrogen and carbon dioxide as well as showing how carbon dioxide affects a flame.
😮
قوت بي خوارزي
you messed it up at the end
Sir/ mam, is it dil HCl ? Plz reply
Very nice ❤❤❤
Hi, I am confused. Don't you use Phenolphtalein when you are titrating a weak acid and strong base because they neutralise each other at a pN above 7 and Phenolphtalein colour changes at a pH of 8.3 - 10
So what was the concentration of the acid? 37%, 20%, 15%???
This vid definitely helped but can I know the song name of this also?
thank u
song goes hard at 2x speed
Bruh I was here to study not vibe 😆😂
Help me I don't understand anything
Exactly 400th Comment
love the music!
Amazing
we did this experiment in class but I did not understand a thing about how this worked. TYY
Now l'm 12th grade student studying Titration , Tomorow l have Chimistry Exam , this video was helpfull to understand that , Thanks
Thank u so much it worked a lot ,
اتحشو
Thank You man I seriously needed that
Thank you so much
thanks
Only watching this in 2021…bless up, i enjoyed watching this so much and the music just does it for me.
Anybody watching in 2021?
عاشت ايدك ورده
why used phenolphathalin indicator
Alguien del IES ARAMO??
nice
Q/explain in detail the neutralization curve between the reaction of a strong acid and a strong base ?
I got it 9.8
Great man
1:04
who was forced to watch this because your teacher said to do so. that includes you, Mrs. Claudio
!
👍
👍
wow...nice
Hi
mad
Which solution take in burette or which take in titration flask???
For more Chemisty practicals please watch the following playlist link czcams.com/play/PLThAifIv_dv6DrohJPL-Nys2aeRrv-TUi.html
my teacher told me to watch this and i give it a 5/10
overshot by a lot tho...
You helped me thankyou
This is really useful
Call the fire man aghhhh
Look a bit hard I will set fire to my house
I want to know what the initial burette reading was
Thanks a lot. Hv my exams tomorrow. Will be of a gr8 help
Thank you so much. Tomorrow is my chemistry exam
Heyy i want to ask that where to use oxalic acid and phenolpthalein