Test for chlorine gas
ฝัง
- เผยแพร่เมื่อ 23 พ.ค. 2018
- Watch me do the experiment to test for chlorine gas.
1) Test gas using damp blue litmus paper
2) Positive result - the paper will bleach
If you watch closely you'll see it turn red first due to the production of HCl, but the bleached result is the one that definitely confirms it was chlorine
Follow me on @chem.jungle on instagram for more quizzes and notes - ภาพยนตร์และแอนิเมชัน
Quick, clear, and to the point! Useful video and beautiful teacher!
Very helpful thanks :)
It turns red 1st and then white. The colour change is so fast you may not be able to see it.
Thank u
very cool!
Thanks babe, it worked
not necessarily to be blue litmus paper, just any litmus paper will do. =)
smiling means no offence =)
I was here for a form!!
What kind of solution is the testtube
can i use red litmus paper?
Why did you moisten litmus paper?
The reason it bleaches is because of the reaction between the chlorine and the water to make hypochlorite ions - these bleach the colour in the litmus. If there was no water, there would be no reaction!
Any reason why blue litmus paper specifically?
Normally it's just easier to see the bleaching and the colour change
Why does the litmus paper turn white in the presence of Cl2?
Because this is chemistry 🌞
@@chookers1074 rly? I thought this is biology 😳
@@krittapolau-yeung892 I searched this up because of my chem homework haha
@@chookers1074 I searched it to study for bmat lmao
@@krittapolau-yeung892 sheshh
you did it the wrong way, dont insert in test tube, just put it right above it
yeah it shouldn't be in contact with the solution or you could get a false positive