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My H2O2 reacts with MnO4 and it gets consumed immediately, so no purple color...

The voice change

Second part link

sir what wavelength we use for the mesurement ?

Please upload a video on sulphate and sulphide content in water sample

Concentration???

Can we use it (0.5% sodium nitroprusside) for legal's test ?

Assuming you took 340mL away from this prepared 1L 0.01M EDTA. What happens to the grams, molarity, normality and what else is of benefit for such cases of the EDTA? And assuming we want to turn the stock back to its originality what is to be done?

Hello, I read that it could also be stored in polyethylene (PE) plastic bottles, but I am concerned if this is true. Any info?

If to prepare 0.02M in 250 ml, then we have to take 0.8 g?

Lowell Squares

Stiedemann Hollow

Thank you a lot I really appreciate that. Could you please release the next part of this method.

Explain ed well

Useful ❤

Thanks so much for this! I just got this Jenco 630 (btw your title says 360, not 630!) and was looking for a video to help me calibrate it properly. This worked perfectly. 👏🏻👏🏻

why does the solution look so dark? isnt 0.05M supposed to look more diluted?

how can i check it , density ?, PH ?, wich value ??

Why we have taken 3.82 g is there calculation?

What will be its normality

I would like to measuring size of red dosing spoon & green dosing spoon.

dissolve 25 gm not 12.5 because you prepare 500 ml standard method say: Dissolve 50 g K2CrO4 in a little distilled water. Add AgNO3 solution until adefinite red precipitate is formed. Let stand 12 h, filter, and dilute to 1 L with distilled water.

Sir how to dispose chemical reagent in laboratory Basin me to daal nhi skate phir kaise kare CaO ka kon sa method h

good! Can you tell me how to make 0.5 M of sodium acetate buffer ph 4

❤ your video is very helpful One request can u have how to analyse assay of antimony triacetate with titration method Pls upload Thanks

I'm Moravian and I assure you ingestion of 95% ethanol causes mostly good vibes, excessive singing and the idea of ingesting more ethanol.

Thank you so much sir. We are anticipating the video on the calculation part, sir.

Hi, may i know if i can use an UVC sterilizing lamp in a water storage tank to eliminate germs and pathogen for use in an aquarium later? Someone was saying UVC lamp on tap water might produce nitrate and nitrite.. Or what are the conditions to allow the production? Thanks.

Please how the change from 50mL to 100mL at the final stage. Please clarify

excuse me what is 4.55

do i heat solid phenol to liquify it on hot plate without any addition to it?

Sir I couldn't get linear regression for 10 ppm to 50 ppm. It seems constant. what would be the measure of 200 ppm for 10,20,30,40&50 ppm

Thank you!! What about the equation in APHA regarding this method; is it true to get the conc. Through the standard curve only?

Excuse me, I don't have SPANDS and Sodium meta Asenic in lab at my university. What chemicals can I use instead? 🙇🏻‍♂️🙏🏻

Para cuántos gramos del reactivo es la cuchara me ayudan

Stock solution doesn't give pinl color it is almost orange to brown!

I analyzed a sample of water from a natural source according to your method. but calculated with excel It came out and the concentration value was negative. What does it mean?

He weighed 1g and in video you are telling it is 0.1g why

Kindly make new video on calculation part, sir.

Sir mine phep is showing 1666 and then ph 1 when i turn it on what is the problem plz reply sir

Thank you, Sir.

Sir, can you please help me to find Chromium content in soil ?

How much time does it takes to get stablised reading ??

Please send pdf

How you add water into acid

How long does it take to completely dissolve?

You are Amazing dear sir...thank you so much for your kind videos🙏🙏🙏

Still hoping for the next video 😢😢 thanks for these 2 video nonetheless

Where is the 3rd part of this (spectrophotometeric determination) ??

Hello, I would like to ask if to make 10,000 ppm solution NH4Cl we just multiply 3.189 grams 10 times? Thank