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BPP Chemistry
Ireland
เข้าร่วมเมื่อ 21 มี.ค. 2018
วีดีโอ
Iron Tablet Titration Calculations Example
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Iron Tablet Titration Calculations Example
Water Hardness (EDTA) Titration Calculations Example
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Water Hardness (EDTA) Titration Calculations Example
Water of Crystallisation Titration Calculations Example
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Water of Crystallisation Titration Calculations Example
Dissolved Oxygen (Winkler Method) Titration Calculations Example
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Dissolved Oxygen (Winkler Method) Titration Calculations Example
Iodine vs Thiosulphate Titration Calculations Example
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Iodine vs Thiosulphate Titration Calculations Example
Ammonium Iron (II) Sulphate vs KMnO4 Titration Calculations Example
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Ammonium Iron (II) Sulphate vs KMnO4 Titration Calculations Example
Chemical Equilibrium ICE Table Example 3
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Chemical Equilibrium ICE Table Example 3
Chemical Equilibrium ICE Table Example 2
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Chemical Equilibrium ICE Table Example 2
Chemical Equilibrium ICE Table Example 1
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Chemical Equilibrium ICE Table Example 1
What is the aim of this experiment
Have a nice day. Thank you for video and I have a question. One of my students do this experiment with EBT indicator last semester with her old teacher, and she didnt observe the color change pink to blue, but grey to blue. What can be the reason behind it, and Should we repeat the experiment because it is for SL internal. Thank you.
It was really helpful. Thank you.❤
It is use to find titration in cosmetics?
Are NaClO and OCl- the same?
great video, concept clear explanation.
Can you comment on the results of total hardness
شكرا❤
Thanks for the help but I somehow ended up with 9000ppm... definitely a me problem lol
absolute legend
Hi, must our indicator be solid? Or can it be in liquid form. Also if it is in liquid form, that means we must add more of it?
God bless you sir
I still don't get it. Why in %w/v, it's divided by 10?
%w/v means g/100cm3. We had a value for g/L so division by 10 converts g/L to g/100cm3
thank u so much i owe 10% of my grade to u
Very helpful, thank you.
what is the concentration of EDTA?
Repeating this experiment with Deionized water what should we expect?
Thank you so much, your video was really helpful, greetings from Venezuela
watch out for city patrol highway drivers in yellow ... pretendenting to be cab drivers of colleges around the city from Heathrow to Alaska ............. .... metric titration to determine the hardness of water .......... erichroma t ............... indicator ..... hundred mils ......... the physics department have eloped with the spectrophotometer and the lab attendant cannot answer the income tax details ......... which is with vinayaka mission university ...... aarupadai veedu institute of technology ...............assistant professor ..grade two ............ how account exists without the employee ..........
i love you
what is the name of the ph10. buffer product?
If I am titrating to find the effect of (temporary) water hardness due to temperature, is it alright if I use this method for total water hardness and then determine the effect of temperature on the change in water hardness (which would indicate the change in temporary water hardness)? How long would I have to let each water sample be at each temperature, before removing from the heat? Lastly, once it cools down and I carry out the titration, should I rinse the water pipette after every trial OR after every interval of water OR not at all? Would greatly appreciate your help and thanks a lot for the video demonstration!
Amazing explanation
Thanks a lot bro💚🤎may my school give you all my tuition fees
Thanks, super helpful!!!😊
Where did the 9.8 come from?
To measure 100 ml of a water sample you used 25 ml pipette 4 times, but would it be better to use a 100 ml measuring cylinder? I thought this would minimize the bias, but at the end I'm not sure
i believe a pipette is still more accurate than a measuring cylinder even when used 4 times. It might be because of its smaller diameter
Thank you very much
thankuuuuuuuuu sir
What non sense writting on 0paque surface
This was very helpful!
How to get know whether the value obtained in burette is correct??
Greetings.Please help me out with this Given 25.4g of I2 in 6g KI per dm3 24.82g Na2S2O3 per dm3 Also given Na2S2O3.5H2O Help me work out the end point of the Redox titration using starch solution Thanks Chidozie Ofoegbu
Could you please explain how you got 0.07 mol/L? Thank you.
Thanks a lot for helping me write my report..😙😙
Excellent! Thanks very much
Thank you! I am a college student and I found your video very helpful.
GREAT EXPLANATION
What would you do suppose you have a water sample that you want to test for hardness and you find it is too hard that Even after adding all the EDTA the end point is not reached? Help please
Make a new, more concentrated EDTA solution and use it to titrate against the water sample. Trial and error will be involved to find the right concentration which will result in a suitable end point. Alternatively, dilute your water sample with distilled water - e.g. if you dilute a 10ml sample to 20ml with distilled water, you will need to multiply your total hardness found by 2 to account for the dilution.
Niall Horan being a chemist
How did you prepare the EDTA solution?
Thank you! I am doing this experiment myself and since you used 100 mLs of bottled water and 1 mL of the pH 10 buffer, if I use 50 mLs of water (tap water) instead, must I halve the buffer amount to 0.5 mL too or does it not matter? Also, should I measure the amount of indicator I tap into the water or does that amount not matter either?
Reading ky h sir
Yuckkkkk
So complicated
When the titration only takes 3 ml
hi! if we need to calculate the mg and calcium in milk, do we also assume caco3 during the calculation?
and if we want to determine the concentration of calcium and magnesium individually, how do we do that
Yes, Ca2+ and Mg2+ concentration is always standardised by assuming it is CaCO3 afaik
@@lillian9448 To calculate Ca2+ on its own (e.g. for milk) we must remove the Mg first. We do this by adding some NaOH solution to our milk. We leave this for 5 minutes while gently swirling and the Mg2+ will precipitate out as Mg(OH)2 and settle to the bottom. We can then add the indicator and titrate as normal. This will give our Ca2+ concentration. We can subtract this concentration from the concentration we find when doing this titration normally (Ca2+ and Mg2+ combined) to find the Mg2+ concentration.
Very clear explanation. Thank you
Thank you sir bless ya heart
Thanks so much! Finally understand this.