Determination of Chemical Oxygen Demand

Aim: To determine Chemical Oxygen Demand of given wastewater samples.

[@adilkhan1879]

thank you sir ji but once mre thing how we prepared potassium dic mate 0.25 and sulphuric acid reagent . an ferrion how we make please share me .

[@himanshukhobragade2329]

Thank you sir for such helping videos...

[@sakibmir1952]

Never pepite out potassium dichromate by mouthn

[@user-yh2tf1lz2u]

How do we calculate the cod after titration

[@agoshehaq7894]

Thank you sir ❤❤

[@user-yh2tf1lz2u]

How do we calculate the amount of COD after titration

[@satyabratasahoo4679]

Sir, I think you should not take sulfuric acid without rubber hand gloves. 🎉 That's very hazardous.

[@rheatalapatra8535]

Thanks .

[@saziagaur146]

For 1:2 what is the ratio pls can you tell clearly

[@pradipghule7226]

Calculation part is remaining please share

[@kamallovelykhan5442]

Calculate karke bataeynge