Determination or Assay of Sodium Chloride (NaCl) by Titration

Determination or Assay of Sodium Chloride (NaCl) by Titration_A Complete Procedure (Mohr’s Method)

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Күн бұрын

Determination of Sodium chloride percent is an important testing parameter for table salt and other food sample. This video represents the detailed procedure of Sodium chloride percent analysis by the Mohr’s Method. This method determines the chloride ion concentration of a solution by titration with silver nitrate. As the silver nitrate solution is slowly added, a precipitate of silver chloride forms. The end point of the titration occurs when all the chloride ions are precipitated. ______________________________________________________________________
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Related Tag:
#Salt
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Пікірлер: 105

@drnerminelmasry2134 3 жыл бұрын

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

@MicroChemsExperiments 3 жыл бұрын

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.

@patricialancho806 4 ай бұрын

very well explained, thanks

@marygracetecsonbue8420 2 жыл бұрын

i remember it all to well

@MicroChemsExperiments 2 жыл бұрын

Great.

@shahnawazalam4952 9 ай бұрын

Reference please or name of test method?

@Kewat_darshan 4 жыл бұрын

Please give a video urea test, crude protein test

@MicroChemsExperiments 4 жыл бұрын

@Darsh Kumar Kevat Thanks for your comment. Crude Protein test video is already given in this channel. Link of crude protein test: kzfaq.info/get/bejne/r7CVps9pzdLGoac.html We will upload a video of urea test very soon. We are working on it. Be with us.

@jayshinde8341 3 жыл бұрын

Sir make more video on titration

@MicroChemsExperiments 3 жыл бұрын

We uploaded many videos of Titration. Please find these video out.

@nurhaqimismail8751 Ай бұрын

Hi. May I know where does the 0.00584 in the last equation comes from? Thanks

@huynhthixuanthuy2322 2 жыл бұрын

Why you used 0,00584 and 0,1 in calculation ?

@MicroChemsExperiments 2 жыл бұрын

0.00584 is a calculation factor. 0.1 is the normality of AgNO3.

@adnanmustafa1518 3 ай бұрын

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 % ?

@sidayub3955 3 ай бұрын

Please make on urea test in feed

@MK-wo6rf 3 ай бұрын

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!

@mehreenkanwalchemistryteac4842 3 жыл бұрын

Great

@MicroChemsExperiments 3 жыл бұрын

Thank you.

@karanverma6074 2 жыл бұрын

Microchem Experimenter is requested to make a video on honey testing.

@MicroChemsExperiments 2 жыл бұрын

Already uploaded a test. Link: kzfaq.info/get/bejne/jNGSm8epp66bn5s.html

@MohamedNusky1 3 жыл бұрын

i want a video from you, how to calculate magnesium and calcium content in table salt?

@MicroChemsExperiments 3 жыл бұрын

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?

@MohamedNusky1 3 жыл бұрын

@@MicroChemsExperiments yes iwant

@MicroChemsExperiments 3 жыл бұрын

@@MohamedNusky1 Please watch the video. kzfaq.info/get/bejne/j8Bji8iJuaysYas.html In the same way you can determine Mg & Ca

@MohamedNusky1 3 жыл бұрын

@@MicroChemsExperiments thank you ❤️❤️

@nainanizami7924 7 ай бұрын

followed this method, used standardized solution of silver nitrate but not obtaining brick red color or end point

@sidayub3955 3 ай бұрын

Yes same problem

@maisarah9296 2 жыл бұрын

Can i know which reagent have to freshly prepared? Or can be prepared and stored for further analysis?

@MicroChemsExperiments 2 жыл бұрын

Potassium Chromate and AgNO3 should be prepared freshly. Others can be stored for future analysis

@drnerminelmasry2134 3 жыл бұрын

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

@MicroChemsExperiments 3 жыл бұрын

Please send message to our facebook page. Link is given in the description section.

@user-xm5hi4uq1c 7 ай бұрын

what reference is this? aoac? iso?

@deeptishukla2306 Жыл бұрын

Plz provide test method for estimation of salt in poultry feed

@MicroChemsExperiments Жыл бұрын

Do following the same video

@lakhanyadav6205 3 жыл бұрын

Sir please a make video in urea test gafta method

@MicroChemsExperiments 3 жыл бұрын

Ok. Please wait

@kaleemshaikh6793 Жыл бұрын

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.

@MicroChemsExperiments Жыл бұрын

It is necessary to dissolve 0.25g in 50ml

@kaleemshaikh6793 Жыл бұрын

@@MicroChemsExperiments Thnx sir

@drnerminelmasry2134 3 жыл бұрын

please give a video for for nitrite&phosphorous

@MicroChemsExperiments 3 жыл бұрын

We are currently working on phosphorous test. We will start working for nitrite soon. Be with us.

@user-ho3sz1sh8u 8 ай бұрын

Sir calculation part is not clear

@mmama-abasiudo1667 2 жыл бұрын

What is the basis for the use of potassium chromate in the experiment?

@MicroChemsExperiments 2 жыл бұрын

Indicator

@tic857 3 жыл бұрын

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?

@MicroChemsExperiments 3 жыл бұрын

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.

@tic857 3 жыл бұрын

@@MicroChemsExperiments thank you for your answer.

@MicroChemsExperiments 3 жыл бұрын

You are most welcome.

@hingusneh2032 Жыл бұрын

Can we use potassium chromate used as indicator

@MicroChemsExperiments Жыл бұрын

@hingusneh2032 Жыл бұрын

No Sorry potassium di-chromate

@narendarpratapyadav9908 2 жыл бұрын

Hii Sir how to check the mv valve of mithaily, How to check charcol activated carbon Please give me infarm ...

@MicroChemsExperiments 2 жыл бұрын

We will develop video later

@narendarpratapyadav9908 2 жыл бұрын

@@MicroChemsExperiments ok sir thanku .....

@HarendraSingh-kv4jd 2 жыл бұрын

how much distilled water was added to the sample?

@MicroChemsExperiments 2 жыл бұрын

25ml

@waqaspanjwani8554 3 жыл бұрын

what about rest 2.27 bcuz you showed 97,67 is NACL

@MicroChemsExperiments 3 жыл бұрын

Moisture & impurities

@baobeiful 3 жыл бұрын

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?

@MicroChemsExperiments 3 жыл бұрын

Please follow this video: kzfaq.info/get/bejne/qdaFadGc282bp40.html

@baobeiful 3 жыл бұрын

@@MicroChemsExperiments thank you!!

@MicroChemsExperiments 3 жыл бұрын

You are most welcome.

@maheshprajapati5515 3 жыл бұрын

Is calculation me NaCl 0.1 N ka use hi nahi hua h

@MicroChemsExperiments 3 жыл бұрын

We used. Look at the calculation again. We divided by 0.1.

@vishulakmini7981 3 жыл бұрын

Please give a vedio for determination of salt content in cheese by using patassium thiocyanate using for titration

@MicroChemsExperiments 3 жыл бұрын

Vishu Lakmini, do you mean any specific reference method? What was that reference method?

@vishulakmini7981 3 жыл бұрын

@@MicroChemsExperiments I didn't know it is specific method,but I follow volhard method .please give vedio for that method

@MicroChemsExperiments 3 жыл бұрын

@@vishulakmini7981 okay. We will work on Volhard method as soon as possible. Stay with us.

@vishulakmini7981 3 жыл бұрын

@@MicroChemsExperiments ok thank you

@MicroChemsExperiments 3 жыл бұрын

@@vishulakmini7981 It's pleasure.

@mohamedhossam4043 3 жыл бұрын

Can I ask why you multiple weight of sample in 0.1

@MicroChemsExperiments 3 жыл бұрын

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.

@mohamedhossam4043 3 жыл бұрын

@@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

@MicroChemsExperiments 3 жыл бұрын

@@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.

@erukpemomodudavid207 2 жыл бұрын

Please explain the calculation

@MicroChemsExperiments 2 жыл бұрын

Please study Mohr's Method for detailed explanation of this method and calculation

@amolthombare1746 Жыл бұрын

Plz share principal of this method

@MicroChemsExperiments Жыл бұрын

Search on Google by Mohr's method

@rakibkhan1449 Жыл бұрын

Dear brother, Plz correction your calculation for Std of AgNO3.

@MicroChemsExperiments Жыл бұрын

Noted

@erukpemomodudavid207 2 жыл бұрын

Where did 0.00584 come from

@MicroChemsExperiments 2 жыл бұрын

Calculation factor of Mohr's Method.

@Muhmdsaf 3 жыл бұрын

Can you give me any reference for this test

@MicroChemsExperiments 3 жыл бұрын

Muhammad K, reference for this test is IS:253-1985. Thank you for being with us.

@markandrewdegoyo6411 3 жыл бұрын

The initial reading should be 37.6 ml

@MicroChemsExperiments 3 жыл бұрын

We also used 37.6ml in the calculation. So did we do anything wrong in anywhere?

@TaeThei 3 жыл бұрын

@@MicroChemsExperiments Why is in the standardization of AgNO3, the V1 is the volume of NaCl but the N1 is the normality of AgNO3?

@MicroChemsExperiments 3 жыл бұрын

@@TaeThei We did a mistake. N1 should be Normality of NaCl. We are sorry for that. Please calculate it by yourself. Thank you.

@wryafarrokhikurd8036 3 жыл бұрын

😂😂😂😂why do you shake like that 😂😂😂

@MicroChemsExperiments 3 жыл бұрын

Because I'm bad in titration. You can do better in your lab, I believe.

@anantharaj6961 3 жыл бұрын

Why you used 0.00584 & 0.1 in calculation part

@MicroChemsExperiments 3 жыл бұрын

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.

@miguelignaciocelyguezguan6129 3 жыл бұрын

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)

@MicroChemsExperiments 3 жыл бұрын

@@miguelignaciocelyguezguan6129 Thank you so much for the wonderfull explaination. We appreciate it. Thanks a bunch.

@nafsoonrahman1501 3 жыл бұрын

@@MicroChemsExperiments in another video of yours (kzfaq.info/get/bejne/qdaFadGc282bp40.html) 5.84 was used. which one is correct?

@nafsoonrahman1501 3 жыл бұрын

@@miguelignaciocelyguezguan6129 isnt it .058?

@anythingseverything1526 3 жыл бұрын

can you explain the equation please? why multiplied by 100,why divided by 0.1 etc...?

@MicroChemsExperiments 3 жыл бұрын

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.