Indlela yokuhlola ukwengezwa kwezinto ezingaphili i

Ungakuhlola kanjani ukungezwa kwezinto ezingaphili kuzinsiza zokucubungula ze-ACR:

Indlela yokutholwa ye-Ca2+:

Izinsimbi zokuhlola nama-reagents: i-beaker; Ibhodlela le-cone; Ifaneli; i-burette; Isithando somlilo sikagesi; I-ethanol engenalutho; I-Hydrochloric acid, isisombululo se-NH3-NH4Cl sebhafa, inkomba ye-calcium, isixazululo esijwayelekile esingu-0.02mol/L EDTA.

Izinyathelo zokuhlola:

1. Kala ngokunembile inani elithile lesampula yosizo lokucubungula i-ACR (linembile libe ngu-0.0001g) bese ulibeka kubhika. Imanzise nge-ethanol anhydrous, bese wengeza ngokweqile 1:1 hydrochloric acid futhi uyishisise esithandweni sikagesi ukuze usabele ngokuphelele ama-calcium ions nge-hydrochloric acid;

2. Geza ngamanzi bese uhlunga ngefaneli ukuze uthole uketshezi olucacile;

3. Lungisa inani le-pH libe likhulu kuno-12 ngesisombululo sebhafa se-NH3-NH4Cl, engeza inani elifanele lesikhombi se-calcium, kanye ne-titrate ngesisombululo esivamile esingu-0.02mol/L EDTA. Isiphetho yilapho umbala ushintsha usuka konsomi ngokubomvu ukuya koluhlaza okwesibhakabhaka okumsulwa;

4. Yenza izivivinyo ezingenalutho kanyekanye;

5. Bala C # a2+=0.02 $(V-V0) $0.04004M $%&&

V - Ivolumu (mL) yesisombululo se-EDTA esidliwe lapho kuhlolwa amasampula osizo lokucubungula i-ACR.

I-V # - Umthamo wesisombululo esidliwe ngesikhathi sokuhlolwa okungenalutho

M – Kala isisindo (g) sesampula yosizo lokucubungula i-ACR.

Indlela yokushisa yokulinganisa izinto ezingaphili:

Izinsimbi zokuhlola: ibhalansi yokuhlaziya, isithando somlilo se-muffle.

Izinyathelo zokuhlola: Thatha amasampula osizo lokucubungula angu-0.5,1.0g ACR (anembile kuye ku-0.001g), uwabeke esithandweni somlilo esingaguquki esingu-950 se-muffle ihora eli-1, pholisa, bese ukala ukuze ubale izinsalela zokusha ezisele. Uma izinto ezingaphili zingezwa kumasampula wosizo wokucubungula we-ACR, kuzoba nezinsalela eziningi.