3 Determination of COD of waste water | Chemistry Lab Experiments | VTU | 14CHEL17

List of VTU Lecture Videos
I Semester & II Semester VTU Lab Classes
Workshop Practice | Mechanical Engineering • Workshop Practice | Me...
Chemistry Lab Experiments | VTU | 14CHEL17 • Chemistry Lab Experime...
C Programming Lab | VTU | 14CPL16 • C Programming Lab | VT...
Physics Lab Experiments | VTU | 14PHYL17 • Physics Lab Experiment...
II Semester
M2 | Math-II | 15MAT21 | VTU • M2 | Math-II | 15MAT21...
Programming in C & Data Structures | 15PCD13/15PCD23 | VTU • Programming in C & Dat...
Basic Electronics | 15ELN15 / 15ELN25 | VTU • Basic Electronics | 15...
III Semester
ECE
ANALOG ELECTRONICS | 15EC32 | VTU • ANALOG ELECTRONICS | 1...
Network Analysis | 15EC34 | VTU • Network Analysis | 15E...
CSE
Analogue and Digital Electronics | 15CS32 | VTU • Analogue and Digital E...
EEE
Electrical Circuit Analysis | 15EE32 | VTU • Electrical Circuit Ana...
CIVIL
Strength of Materials| 15CV32 | VTU • Strength of Materials ...
Fluid Mechanics | 15CV33 | VTU • Fluid Mechanics | 15CV...
IV Semester
M4 | Math-IV | 15MAT41 | VTU • Engg Maths 4 ( 15MAT41)
Microprocessors and Microcontrollers | 15CS44 | VTU • Microprocessors and Mi...
Advanced Maths 2 | MATDIP401 | VTU • MATDIP401 | Advanced M...
V Semester
Automata Theory and Computability | 15CS54 | VTU • Automata Theory and Co...

[@divyadivine6668]

Pls clearly mention the quantity and normality/molarity of sample and reagents respectively

[@raoufbouchareb2326]

I was really surprised when I saw pipette suction by mouth. That's terrible. Even for the pure H2SO4 poured directly without hand precaution. This is really dangerous and courageous at the same time. Good luck

[@user-rv8jb9xd6h]

Iam shocked, never seen that!

[@mr.anonymousbro5156]

Dude that's not a big thing we have been doing the same thing since our +1 classes

[@vasdgod]

That's how chemistry is done in developing countries. I drank cement solution water , dirty water , potassium nitrate and my teeth felt like they are falling. We can't complain cause that's the best lab we can get.

[@mr.anonymousbro5156]

@@vasdgod true bro

[@mr.anonymousbro5156]

@@vasdgod are you doing your engineering bcs cement solution we get in engineering only

[@nba9604]

Is silver sulphate and mercuric sulphate not needed??

[@108vigneshrk8]

Thanku mam

[@rakhikatiyar9224]

Thanks mam

[@keneirio3398]

at first i thought my earpiece was not working haha

[@_.afrazzz._6479]

How to prepare std fas soln?

[@adamsmabruk5627]

standard what solution ? I mean the solution used for the titration.

[@lydiacrimson8078]

waste water is simply kept..?. i wanted to know the cod of waste waster...

[@woodys4613]

, 😂😂same here

[@rami01248]

please state the heating condition required

[@lvk3168]

Mam, please can you let me know , at the end why did u calculated for 25cm^3??

[@MO-fg2cm]

Waste water quantity was 25 cm3

[@sintushaw9669]

why are you not taking the water sample while experiment?

[@dhanshreenavle2707god]

How can she calculated cod without water sample taken

[@tropicallies3242]

Mam what is the initial color of EBT

[@sankarpilla7408]

Mam Instead of ferroin indicator can we use any other indicator

[@surajlokhande4750]

How many sample takes

[@nba9604]

What is 1:1 H2SO4?

[@payaljoshi2484]

One must use aid of rubber bulb while pipetting.

[@BasicinformationlearningHome]

Madam,
Please explain chemical reaction each step.

[@pruvi626]

In second time titration.. mam u r not used sample why😕😕

[@suryakiran3085]

There is no need of sample in blank titration. 🙂

[@shahzebalam3138]

Don't u have a bubbler?????

[@dheerus1214]

Plz use pipett bulb

[@mirakimiraki]

Without heating ...is it possible to calculate COD?

[@AnishGhimire]

no it is not possible but I think she digested the sample by just looking at it ;)

[@vineetha4853]

We heat the sample

[@suryakiran3085]

Aay
She didn't show the heating part , but she mentioned it ..

[@oyundaribaasanbat9928]

pipetting by mouth makes me really uncomfortable

[@aquazoneengineering3556]

COD analysis Video, Please watch and subscribe this channel
th-cam.com/video/L6lQ6rsTNIQ/w-d-xo.html

[@divyasandy6916]

Back titration mam

[@aaronmj6968]

Anyone here after SRM?

[@nandamirajkar7466]

Pipetting by the mouth is non advisable. ....Please don't generalise. ...

[@nirmal6362]

No other option as plastic bulbs for pipets cost 20 Rs. So, big universities and colleges cant efford.

[@shoyrana776]

@@nirmal6362 pipette pumps... Use them..

[@user-rv8jb9xd6h]

@@nirmal6362 you can use a rubber bulb!!!

[@aquazoneengineering3556]

COD analysis Video, Please watch and subscribe this channel
th-cam.com/video/L6lQ6rsTNIQ/w-d-xo.html

[@abhiadi3944]

Wrong procedure

[@MultiKkp]

You are guiding wrong, no reflux is shown here, n H2 so4 is adding quantity is also wrong

[@aquazoneengineering3556]

COD analysis Video, Please watch and subscribe this channel
th-cam.com/video/L6lQ6rsTNIQ/w-d-xo.html

[@abhiadi3944]

Pipetting by mouth is wrong procedure

[@aquazoneengineering3556]

COD analysis Video, Please watch and subscribe this channel
th-cam.com/video/L6lQ6rsTNIQ/w-d-xo.html

[@Raj_Aranya]

Wrong experiment