actual normality for silver nitrate should be (0.101) not 0.099 because (N*v) for Sodium chloride =(N*v) for silver nitrates (0.1*10)=(9.9*N) silver nitrite so normality silver nitrite =0.101 in case of sample preparation you weight 0.25 and dissolved in 50 ml of distilled water if i use 25 ml can affect on the result or no
Drnermin Elmasry, Thank you for your observations. You are right about the Actual Normality. You can also use 25ml distilled water instead of 50ml and it will not cause any error in the result.
@Darsh Kumar Kevat Thanks for your comment. Crude Protein test video is already given in this channel. Link of crude protein test: czcams.com/video/yJesl8hlbqs/video.html We will upload a video of urea test very soon. We are working on it. Be with us.
Muhamed Nusky, thanks for your comment. Ca & Mg can only be determined by Atomic Absorption Spectrometer (AAS). There is no titramatric method. Do you want AAS method?
at 7:29 you add 25 ml of water again in conical flask... It means you dissolve 0.25 gram of Nacl in 50 ml of water... Now the are question is - are u preparing it 0.1 N concentration or it is necessary to take 0.25 gram of Nacl in 50 ml of water.
I'm testing tap water, why isnt my solution turning a milky color like yours? Is it because it has a low concentration Chloride from NaCl? Or does it react differently when the Cl source is calcium hypochlorite?
NaCl concentration in tap water is very low (may be less than 100ppm). This low concentration of NaCl can not be determined by this method. Maximum chlorine in tap water may be present in other forms rather than NaCl.
Thank you for your helps this method ( Mohr’s) used for determination salt in meat product or no please send to me procedure for determination it necessary
Hi, i would like to determine % NaCl in margarine sample. May i know how much sample should i use and what is the sample preparation step for margarine sample?
Mohamed Hossam, thank you for your comment. This method is strictly followed Indian Standard (IS 253:1985) and the equation is given by the standard method of IS 253:1985.
@@MicroChemsExperiments can I make this equation also for determining assay of sodium carbonate (soda ash ) or if u have a standard methods to get the assay of soda ash
@@mohamedhossam4043 no, you can not determine the sodium carbonate by this method. This method is specific for sodium chloride assay. We will upload another video for Sodium Carbonate Assay very soon. Be with us.
Molar mass of NaCl = 58.44 gr / mol so (58.44/1000) = 0.00584. The 0.1 is the normality of NaCl; watch the video in the first minute (Chemical /Reagent list). Un saludo desde Colombia (Latinoamérica)
Thank you for your question. 100 is used to convert the NaCl amount into percentage. 0.1 is the normality of AgNO3 which we intended to use in this test.
very well explained, thanks
actual normality for silver nitrate should be (0.101) not 0.099 because (N*v) for Sodium chloride =(N*v) for silver nitrates (0.1*10)=(9.9*N) silver nitrite
so normality silver nitrite =0.101
in case of sample preparation you weight 0.25 and dissolved in 50 ml of distilled water if i use 25 ml can affect on the result or no
Drnermin Elmasry, Thank you for your observations. You are right about the Actual Normality.
You can also use 25ml distilled water instead of 50ml and it will not cause any error in the result.
i remember it all to well
Great.
In the last calculation, may I ask where did 0.00584/0.1 came from? Is this related to the molar mass of NaCL? Thank you!
Please give a video urea test, crude protein test
@Darsh Kumar Kevat
Thanks for your comment. Crude Protein test video is already given in this channel. Link of crude protein test: czcams.com/video/yJesl8hlbqs/video.html
We will upload a video of urea test very soon. We are working on it. Be with us.
I have two samples in lab and calculate the value
New sample = 137%
Old sample. = 112.8%
Can you tell me which sample have more pourtiy % ?
Hi. May I know where does the 0.00584 in the last equation comes from?
Thanks
Sir make more video on titration
We uploaded many videos of Titration. Please find these video out.
Great
Thank you.
Please make on urea test in feed
Why you used 0,00584 and 0,1 in calculation ?
0.00584 is a calculation factor.
0.1 is the normality of AgNO3.
Reference please or name of test method?
Microchem Experimenter is requested to make a video on honey testing.
Already uploaded a test.
Link: czcams.com/video/VkbhdxBH7og/video.html
followed this method, used standardized solution of silver nitrate but not obtaining brick red color or
end point
Yes same problem
i want a video from you, how to calculate magnesium and calcium content in table salt?
Muhamed Nusky, thanks for your comment. Ca & Mg can only be determined by Atomic Absorption Spectrometer (AAS). There is no titramatric method. Do you want AAS method?
@@MicroChemsExperiments yes iwant
@@MohamedNusky1 Please watch the video.
czcams.com/video/YZ3XeXTFH1w/video.html
In the same way you can determine Mg & Ca
@@MicroChemsExperiments thank you ❤️❤️
Can i know which reagent have to freshly prepared? Or can be prepared and stored for further analysis?
Potassium Chromate and AgNO3 should be prepared freshly. Others can be stored for future analysis
please give a video for for nitrite&phosphorous
We are currently working on phosphorous test. We will start working for nitrite soon. Be with us.
Plz provide test method for estimation of salt in poultry feed
Do following the same video
at 7:29 you add 25 ml of water again in conical flask... It means you dissolve 0.25 gram of Nacl in 50 ml of water... Now the are question is - are u preparing it 0.1 N concentration or it is necessary to take 0.25 gram of Nacl in 50 ml of water.
It is necessary to dissolve 0.25g in 50ml
@@MicroChemsExperiments Thnx sir
I'm testing tap water, why isnt my solution turning a milky color like yours? Is it because it has a low concentration Chloride from NaCl? Or does it react differently when the Cl source is calcium hypochlorite?
NaCl concentration in tap water is very low (may be less than 100ppm). This low concentration of NaCl can not be determined by this method. Maximum chlorine in tap water may be present in other forms rather than NaCl.
@@MicroChemsExperiments thank you for your answer.
You are most welcome.
Sir please a make video in urea test gafta method
Ok. Please wait
Thank you for your helps this method ( Mohr’s) used for determination salt in meat product or no please send to me procedure for determination it necessary
Please send message to our facebook page. Link is given in the description section.
what reference is this? aoac? iso?
What is the basis for the use of potassium chromate in the experiment?
Indicator
what about rest 2.27 bcuz you showed 97,67 is NACL
Moisture & impurities
Sir calculation part is not clear
Hi, i would like to determine % NaCl in margarine sample. May i know how much sample should i use and what is the sample preparation step for margarine sample?
Please follow this video: czcams.com/video/spU6nkvg7wY/video.html
@@MicroChemsExperiments thank you!!
You are most welcome.
Can we use potassium chromate used as indicator
No
No Sorry potassium di-chromate
Hii
Sir how to check the mv valve of mithaily,
How to check charcol activated carbon
Please give me infarm ...
We will develop video later
@@MicroChemsExperiments ok sir thanku .....
Please give a vedio for determination of salt content in cheese by using patassium thiocyanate using for titration
Vishu Lakmini, do you mean any specific reference method? What was that reference method?
@@MicroChemsExperiments I didn't know it is specific method,but I follow volhard method .please give vedio for that method
@@vishulakmini7981 okay. We will work on Volhard method as soon as possible. Stay with us.
@@MicroChemsExperiments ok thank you
@@vishulakmini7981 It's pleasure.
how much distilled water was added to the sample?
25ml
Can I ask why you multiple weight of sample in 0.1
Mohamed Hossam, thank you for your comment. This method is strictly followed Indian Standard (IS 253:1985) and the equation is given by the standard method of IS 253:1985.
@@MicroChemsExperiments can I make this equation also for determining assay of sodium carbonate (soda ash ) or if u have a standard methods to get the assay of soda ash
@@mohamedhossam4043 no, you can not determine the sodium carbonate by this method. This method is specific for sodium chloride assay.
We will upload another video for Sodium Carbonate Assay very soon. Be with us.
Please explain the calculation
Please study Mohr's Method for detailed explanation of this method and calculation
Dear brother, Plz correction your calculation for Std of AgNO3.
Noted
Plz share principal of this method
Search on Google by Mohr's method
Where did 0.00584 come from
Calculation factor of Mohr's Method.
Can you give me any reference for this test
Muhammad K, reference for this test is IS:253-1985. Thank you for being with us.
Why you used 0.00584 & 0.1 in calculation part
Ananth Raj, Thanks for your comment. These two factors are given by the Mohr's method. That's why these are used in this calculation.
Molar mass of NaCl = 58.44 gr / mol so (58.44/1000) = 0.00584. The 0.1 is the normality of NaCl; watch the video in the first minute (Chemical /Reagent list). Un saludo desde Colombia (Latinoamérica)
@@miguelignaciocelyguezguan6129 Thank you so much for the wonderfull explaination. We appreciate it. Thanks a bunch.
@@MicroChemsExperiments in another video of yours (czcams.com/video/spU6nkvg7wY/video.html) 5.84 was used. which one is correct?
@@miguelignaciocelyguezguan6129 isnt it .058?
The initial reading should be 37.6 ml
We also used 37.6ml in the calculation. So did we do anything wrong in anywhere?
@@MicroChemsExperiments Why is in the standardization of AgNO3, the V1 is the volume of NaCl but the N1 is the normality of AgNO3?
@@TaeThei We did a mistake. N1 should be Normality of NaCl. We are sorry for that. Please calculate it by yourself. Thank you.
Is calculation me NaCl 0.1 N ka use hi nahi hua h
We used. Look at the calculation again. We divided by 0.1.
can you explain the equation please? why multiplied by 100,why divided by 0.1 etc...?
Thank you for your question. 100 is used to convert the NaCl amount into percentage. 0.1 is the normality of AgNO3 which we intended to use in this test.
Can i use this in my presention,i hv to upload it....online by youtube...plzzz sir provide permission
Soul Healing, Sorry, we can't give you the permission to use our videos directly. You can use this video link only. Thanks for understanding.
😂😂😂😂why do you shake like that 😂😂😂
Because I'm bad in titration. You can do better in your lab, I believe.