Sidee loo tijaabiyaa ku darista walxaha aan dabiiciga ahayn ee qalabka wax lagu farsameeyo ee ACR?

Habka ogaanshaha ee Ca2+:

Qalabka tijaabada iyo walxaha firfircoon: boolal; Weel koonka ah; Funnel; Burette; Foorno koronto; Ethanol aan biyo lahayn; Aashitada Hydrochloric, xalka kaydka NH3-NH4Cl, tilmaame kaalshiyam ah, xalka caadiga ah ee 0.02mol/LEDTA.

Tallaabooyinka tijaabada:
1. Si sax ah u miisaami xaddi cayiman oo muunad caawinta farsamaynta ACR ah (sax ah ilaa 0.0001g) oo ku rid weel. Ku qoyso ethanol aan biyo lahayn, ka dibna ku dar xaddi badan oo ah 1:1 hydrochloric acid oo ku kululee foorno koronto si ay u oggolaato in ion-yada kalsiyumku si buuxda ula falgalaan hydrochloric acid;
2. Biyo ku dhaq oo ku shaandhee shaandho si aad u hesho dareere saafi ah;
3. Hagaaji qiimaha pH-ga si uu uga weynaado 12 adoo isticmaalaya xalka kaydka NH3-NH4Cl, ku dar qaddar ku habboon oo tilmaame kaalshiyam ah, oo titrate ku samee xalka caadiga ah ee 0.02mol/LEDTA. Ugu dambeyntii waa marka midabku isu beddelo casaan guduudan una beddelo buluug saafi ah;
4. Samee tijaabo madhan isku mar;
5. Xisaabi C # a2+=0.02 $(V-V0) $0.04004M $%&&
V - Mugga xalka EDTA ee la isticmaalay markii la tijaabinayay muunadaha gargaarka farsamaynta ACR (mL).
V # - Mugga xalka la isticmaalay intii lagu jiray tijaabada madhan
M - Miisaan cufka muunadda gargaarka farsamaynta ACR (g).

Habka gubista ee lagu cabbiro walxaha aan dabiiciga ahayn:
Qalabka tijaabada ah: dheelitirka falanqaynta, foornada muffle.
Tallaabooyinka tijaabada ah: Qaado muunado gargaar farsamayn ACR ah oo 0.5,1.0g ah (sax ah ilaa 0.001g), dhig foorno heerkul joogto ah oo 950 ah oo gub 1 saac, ka dibna qabooji oo miisaan si aad u xisaabiso walxaha gubanaya ee haray. Haddii walxaha aan dabiiciga ahayn lagu daro muunadda qalabka farsamaynta ACR, waxaa jiri doona haraag badan.
Habka dareeraha:
1. Qalabka tijaabada ah iyo dheelitirka falanqaynta falanqaynta; 25mL oo ah dhalo mug leh; Trichloromethane.
Tallaabada 2: Sida ku cad habka tijaabada viscosity-ga gudaha ee ACR, miisaan 75mg oo muunadda ah oo ku rid dhalo mug leh oo 25mL ah. Ku dar dareeraha trichloromethane. Haddii uu jiro wasakh ama iftiin muuqda.