Reaction of Hexane and Hexene with Br and KMnO4
Summary
TLDRIn this chemistry-focused video, the host engages in a series of experiments involving hexane and hexene, mixing them with various chemicals like bromine water, potassium manganate, and dilute sulfuric acid. The script captures the process of conducting these reactions, with an emphasis on the visual effects and the excitement of scientific discovery. The video highlights the importance of careful handling and observation, as well as the beauty of chemical reactions, with a humorous and educational approach.
Takeaways
- 🧪 The video involves an experiment with cyclohexane and hexane, two different types of hydrocarbons.
- 🔄 The process starts by mixing cyclohexane with bromine water, which is a common test for unsaturation in organic chemistry.
- 💧 There is a mistake made during the experiment where the bromine water is added before the hexane, which is not the correct procedure.
- 🔴 The experimenter corrects the mistake and proceeds to mix hexane with potassium manganate, an oxidizing agent.
- 🌡️ Dilute sulfuric acid is also required in the reaction with potassium manganate, which is added to facilitate the reaction.
- 📹 The video script mentions issues with the camera focusing, indicating the importance of clear visuals in demonstrating the experiment.
- 🔄 The script also mentions a second reaction with hexene, another unsaturated hydrocarbon, using bromine water.
- 🔬 The experimenter uses potassium manganate and sulfuric acid with hexene to test for unsaturation, similar to the cyclohexane reaction.
- 🤔 There are moments of confusion and uncertainty in the script, suggesting that the experimenters may not be fully prepared or knowledgeable about the procedure.
- 🎥 The video script includes commentary on the quality of the camera and the focus, highlighting the technical aspects of filming a science experiment.
- 🌈 The final reaction with hexene and the oxidizing agents results in a 'truly beautiful color,' indicating a successful demonstration of the chemical reaction.
Q & A
What is the chemical being discussed in the script?
-The script discusses cyclohexane (hexane) and its reactions with bromine water and potassium manganate, among other chemicals.
What is the purpose of adding 1 cm cubed of bromine water to the cyclohexane?
-The bromine water is added to cyclohexane to observe a chemical reaction, which is a common test for unsaturation in organic compounds.
Why is the bung (stopper) put on the flask before adding the hexane?
-The bung is used to prevent the evaporation of hexane before the reaction can be observed.
What is the role of potassium manganate in the reaction with hexane?
-Potassium manganate is used as an oxidizing agent in the reaction with hexane, which can help to identify the presence of certain functional groups in the compound.
Why is dilute sulfuric acid added to the mixture of hexane and potassium manganate?
-Dilute sulfuric acid is added to facilitate the oxidation reaction between hexane and potassium manganate.
What is the significance of the color change observed in the reaction with potassium manganate and sulfuric acid?
-The color change is indicative of the progress of the oxidation reaction, with the color being a visual confirmation of the reaction taking place.
What is the term 'hexine' mentioned in the script, and what is its relevance to the experiment?
-The term 'hexine' seems to be a mispronunciation or typo for 'hexene,' which is likely the compound being tested with bromine water for the presence of a double bond.
Why is the camera focusing on the reactions being performed?
-The camera is focusing to capture the visual details of the chemical reactions, which is important for demonstrating the changes occurring in the experiment.
What is the purpose of shaking the flask containing the mixture of hexene, sulfuric acid, and potassium manganate?
-Shaking the flask ensures that the reactants are well mixed, which is necessary for a thorough chemical reaction to occur.
Why is there a mention of needing a 'pet' in the script?
-This is likely a miscommunication or typo in the script. It could be referring to a 'petri dish' or another piece of laboratory equipment needed for the experiment.
What does the script imply about the importance of careful observation in a chemistry experiment?
-The script implies that careful observation, such as watching for color changes and ensuring proper mixing, is crucial for understanding and documenting the outcomes of a chemistry experiment.
Outlines
🧪 Chemistry Experiment with Hexane and Bromine Water
The first paragraph describes a chemistry experiment involving the mixing of cyclohexane with bromine water. The process begins with the addition of 1 cm³ of bromine water to cyclohexane before it evaporates. There is mention of a music track playing in the background and a need to shake the mixture. The experimenter apologizes for forgetting to put a stopper on the container and then proceeds to demonstrate the mixing process on camera. The paragraph also hints at a subsequent experiment involving hexane with potassium manganate and the need for dilute sulfuric acid, although there is some confusion and dialogue about the procedure.
🌈 Observations of Chemical Reactions with Hexine and Potassium Manganate
The second paragraph continues the chemistry theme, focusing on the reaction of hexine with sulfuric acid and potassium manganate. The experimenter emphasizes the importance of shaking the mixture thoroughly to ensure proper mixing. The paragraph highlights the striking color change observed in the reaction, which is described as 'truly beautiful.' There is also playful banter and commentary on the camera's focus, adding a light-hearted tone to the scientific demonstration.
Mindmap
Keywords
💡Hexane
💡Cyclohexane
💡Bromium Water
💡Potassium Permanganate
💡Dilute Sulfuric Acid
💡Hexene
💡Chemical Reaction
💡Bung
💡Shake
💡Color Change
Highlights
Introduction of hexane and cyclohexane in the experiment.
Mixing hexane with bromine water as the first step.
Adding 1 cm cubed of bromine water to the mixture.
The importance of sealing the container before hexane evaporates.
Shaking the mixture to ensure proper mixing.
Introduction of potassium manganate in the next step.
Need for dilute sulfuric acid in the reaction with potassium manganate.
Adding 1 cm cubed of dilute sulfuric acid to the mixture.
Adding three drops of potassium manganate.
Confusion regarding the use of sulfuric acid in the experiment.
Transition to using hexene with bromine water.
Emphasis on the clarity and focus of the camera.
Mixing hexene with bromine water and observing the reaction.
The use of potassium manganate and sulfuric acid with cyclohexane.
Need for a clean petri dish for the next step.
Shaking the mixture for a clear picture of the reaction.
Observation of a beautiful color change in the reaction.
Final reaction involving hexine, sulfuric acid, and potassium manganate.
Transcripts
okay so this is this is cyc hexane yes
yes this is hexane this one's
cyclohexane and we're mixing it with
which one we mixing it with first the
Broan water okay we're mixing it with
the bromium water first so add 1 cm
cubed of bromium
water as long as you bring it
[Music]
back I forget to put the stuffer on off
preferably before the hexane evaporates
I'm
sorry okay right put the bung on Shake
it
about and then put it in front of the
camera put it further there there we go
do you see that camera you see that that
means wow you're talking to technology
yeah okay well that's
that all
right right what um the hex was that
that was hexan wasn't it that was hexan
okay so we'll do a hexan with the
potassium manganate
now you
guys
I like filming
it this one need to change YouTube you
like one of those is
the oh that's
okay yeah can we have the a as well
please looking Ford not the drug kind
wow all right okay there we go um so now
we're going to mix the hexane with
potassium manganate
um oh wait we need um dilute sulfuric
acid as
well find that where is the dilute may
borrow the umum mang can we just use
[Music]
it have you already put it in no we
didn't
know no one was there so it okay so we
need to add 1 cm cubed of dilute
sulfuric acid and three drops of
potassium manganate we borrow the suric
acid and 1 cm Cub dilute
[Music]
acid okay and
sodi borrow the
sodi no that was originally you took it
from us I
just no was
that okay and then put it no camera
don't p over okay we'll need it back
afterwards more all right okay it's fine
you can take it okay in front of the
camera you do it then all right I'm
doing it that's the pottassium manganate
with um hexane and sulfuric
acid okay so let's do the hexene with BR
now right now we're going to do the
hexine with bromine waa I love this
focus camera is so good that's nice it
is nice it's very
nice Bill Science
Guy good idea right 1 cm Cube the brine
it was a good idea well done mainly
because I just couldn't
remember 1 cm Cub with that not
loads well done what are you doing
come
on guys settle
down okay stop for
[Music]
it o look things okay this is hexine
with bromine water wait focus focus Fus
focus focus focus focus oh my God Focus
it's legit like not focusing stop stop
it okay well you can see what it
happened with it anyway take
it okay and then we need to do the cyc
hexine with this pottassium manganate
and sulfuric
[Music]
acid
uhoh we need another pet that one's
clean no it's
not what you up to um we're literally on
the last one of
the well I mean I mean this
one yeah
sorry okay don'tget the contast one has
right stoper and shake shake shake shake
fory picture shake it shake it sh shake
it shake it shake it okay so this is
hexine with sulfuric acid and pottassium
manganate Alex Stop whoa then that is a
truly beautiful color
beeps stop Alex stop shaking it that is
gross yes you pointed at that just
showing your
was I thought you find that wow wow that
is a beautiful color okay
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