Kutsunga kweChloride muChikafu Giredhi Sodium CMC

Kutsunga kwechloride mune chikafu-giredhi sodium carboxymethyl cellulose (CMC) inogona kuitwa uchishandisa akasiyana nzira dzekuongorora. Pano, ini ndichatsanangura nzira inowanzoshandiswa, inova nzira yeVolhard, inozivikanwawo seMohr nzira. Iyi nzira inosanganisira titration nesirivha nitrate (AgNO3) mhinduro pamberi pe potassium chromate (K2CrO4) chiratidzo.

Heino nhanho-ne-nhanho maitiro ekutemerwa kwechloride mune chikafu-giredhi sodium CMC uchishandisa nzira yeVolhard:

Zvishandiso uye Reagents:

1. Sodium carboxymethyl cellulose (CMC) muenzaniso
2. Silver nitrate (AgNO3) mhinduro (yakamisikidzwa)
3. Potassium chromate (K2CrO4) chiratidzo mhinduro
4. Nitric acid (HNO3) mhinduro (dilute)
5. Distilled mvura
6. 0.1 M Sodium chloride (NaCl) mhinduro (yakajairwa mhinduro)

Equipments:

1. Analytical balance
2. Volumetric flask
3. Burette
4. Erlenmeyer flask
5. Pipettes
6. Magnetic stirrer
7. pH mita (zvichida)

Maitiro:

1. Weresa nemazvo nezve 1 giramu yesodium CMC sampuli mune yakachena uye yakaoma 250 mL Erlenmeyer flask.
2. Wedzera pamusoro pe100 mL yemvura yakasvibiswa muflask uye simbisa kusvikira CMC yanyungudika zvachose.
3. Wedzera madonhwe mashoma e potassium chromate chiratidzo mhinduro kune flask. Mushonga wacho unofanira kushanduka ukaita yero.
4. Titrate mhinduro neyakaomeswa sirivheri nitrate (AgNO3) mhinduro kusvika dzvuku-brown mvura yesirivheri chromate (Ag2CrO4) ichangobuda. Mhedziso inoratidzirwa nekuumbwa kwemvura inopfuurira yakatsvuka-brown.
5. Rekodha vhoriyamu yeAgNO3 mhinduro yakashandiswa kuita titration.
6. Dzokorora iyo titration nemamwe masampuli eCMC mhinduro kusvika concordant mhedzisiro yawanikwa (kureva, anowirirana titration mavhoriyamu).
7. Gadzirira kutsunga kusina chinhu uchishandisa mvura yakasvibiswa panzvimbo yeCMC sampuli yekuzvidavirira kune chero chloride iripo mune reagents kana glassware.
8. Verenga iyo chloride yemukati mune sodium CMC sampuli uchishandisa inotevera formula:

Kupi:

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  V = vhoriyamu yeAgNO3 mhinduro inoshandiswa pakuita titration (mu mL)

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  N = yakajairika yeAgNO3 mhinduro (mu mol/L)

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  M = molarity yeNaCl yakajairwa mhinduro (mu mol/L)

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  W = uremu hwe sodium CMC sampuli (mu g)

Cherechedza: Chinhu chacho
$35.45$

35.45 inoshandiswa kushandura chloride yemukati kubva magiramu kuenda magiramu echloride ion (
$��-$

Cl−).

Zvekungwaririra:

1. Bata makemikari ese nekungwarira uye pfeka zvakakodzera zvekuzvidzivirira nazvo.
2. Ita shuwa kuti magirazi ese akachena uye akaoma kudzivirira kusvibiswa.
3. Gadzirisa silver nitrate solution uchishandisa yekutanga chiyero senge sodium chloride (NaCl) mhinduro.
4. Ita titration zvishoma nezvishoma pedyo nepanogumira kuti uone mibairo chaiyo.
5. Shandisa magnetic stirrer kuti uone kusanganiswa kwakakwana kwemhinduro panguva yetitration.
6. Dzokorora titration kuti uve nechokwadi chekururama uye kurongeka kwemigumisiro.

Nekutevera maitiro aya, unogona kuona iyo chloride yemukati mune yechikafu-giredhi sodium carboxymethyl cellulose (CMC) nemazvo uye nekuvimbika, kuve nechokwadi chekuteedzera hunhu hwemhando uye zvinodikanwa zvekutonga zvezvinowedzera zvekudya.