Mkpebi nke Chloride na nri ọkwa sodium CMC
Enwere ike ime mkpebi nke chloride na ọkwa nri sodium carboxymethyl cellulose (CMC) site na iji ụzọ nyocha dị iche iche.N'ebe a, m ga-akọwapụta usoro a na-ejikarị eme ihe, nke bụ usoro Volhard, nke a makwaara dị ka usoro Mohr.Usoro a gụnyere titration na silver nitrate (AgNO3) ngwọta na ọnụnọ nke potassium chromate (K2CrO4) egosi.
Nke a bụ usoro nzọụkwụ site na mkpebi siri ike nke chloride na ọkwa nri sodium CMC site na iji usoro Volhard:
Akụrụngwa na Reagents:
- Sodium carboxymethyl cellulose (CMC) sample
- Silver nitrate (AgNO3) ngwọta (ọkọlọtọ)
- Potassium chromate (K2CrO4) ngwọta egosi
- Nitric acid (HNO3) ngwọta (tugharia)
- Mmiri distilled
- 0.1M Sodium chloride (NaCl) ngwọta (ọkọlọtọ ngwọta)
Ngwa:
- Ntụle nyocha
- Mpempe ụda olu
- Burette
- Erlenmeyer flask
- Pipettes
- Magnetị mkpagharị
- mita pH (nhọrọ)
Usoro:
- Tụru nke ọma ihe dị ka gram 1 nke ihe nlele sodium CMC n'ime flask Erlenmeyer 250 ml dị ọcha ma kpọọ nkụ.
- Tinye ihe dị ka 100 mL nke mmiri a na-ekpo ọkụ na flask ma mee ka CMC gbazee kpamkpam.
- Tinye ntakịrị ihe ngwọta potassium chromate n'ime ite ahụ.Ihe ngwọta kwesịrị ịtụgharị odo odo.
- Titrate ihe ngwọta na ngwọta ọlaọcha nitrate ọkọlọtọ (AgNO3) ruo mgbe chromate ọlaọcha na-acha ọbara ọbara-agba aja aja (Ag2CrO4) pụtara.A na-egosi njedebe njedebe site na nguzobe nke na-adịgide adịgide na-acha uhie uhie-agba aja aja.
- Dekọọ olu nke ngwọta AgNO3 ejiri maka titration.
- Tinyegharịa titration ahụ yana nlere ọzọ nke ngwọta CMC ruo mgbe enwetara nsonaazụ nkwekọrịta (ya bụ, mpịakọta titration na-agbanwe agbanwe).
- Kwadebe mkpebi efu site na iji mmiri distilled kama iji nlele CMC iji nweta chloride ọ bụla dị na reagents ma ọ bụ glassware.
- Gbakọọ ọdịnaya chloride na nlele sodium CMC site na iji usoro a:
Ọdịnaya chloride (%)=(WV×N×M)×35.45×100
Ebe:
-
V = olu nke ngwọta AgNO3 ejiri maka titration (na mL)
-
N = nkịtị nke ngwọta AgNO3 (na mol / L)
-
M = molarity nke NaCl ọkọlọtọ ngwọta (na mol/L)
-
W = arọ nke ihe nlele sodium CMC (na g)
Mara: Ihe kpatara ya
A na-eji 35.45 gbanwee ọdịnaya chloride site na gram gaa na gram nke ion chloride (
Cl-).
Mkpachapụ anya:
- Jiri nlezianya jikwaa kemịkalụ niile ma yikwasị akụrụngwa nchedo onwe gị kwesịrị ekwesị.
- Gbaa mbọ hụ na ngwongwo iko niile dị ọcha ma kpọọ nkụ ka ịzenarị mmetọ.
- Hazie ngwọta nitrate ọlaọcha site na iji ọkọlọtọ bụ isi dị ka ngwọta sodium chloride (NaCl).
- Mee titration ahụ nwayọ n'akụkụ ebe njedebe iji hụ na nsonaazụ ziri ezi.
- Jiri magnetik mkpagharị iji hụ na agwakọta ihe ngwọta nke ọma n'oge titration.
- Tinyegharịa titration ahụ iji hụ na izi ezi na izi ezi nke nsonaazụ ya.
Site n'ịgbaso usoro a, ị nwere ike ikpebi ọdịnaya chloride dị na ọkwa nri sodium carboxymethyl cellulose (CMC) n'ụzọ ziri ezi na ntụkwasị obi, na-ahụ na nnabata na ụkpụrụ ịdị mma yana ihe iwu chọrọ maka mgbakwunye nri.
Oge nzipu: Mar-07-2024