AGLV5 ENSAIO DE CHAMAS

Algetec

Mayelana nalolu hlelo lokusebenza

1. INHLOSO
Lokhu kuhlolwa kuphathelene nokukhomba ubukhona bamanye ama-ion ensimbi, ngokusekelwe kububanzi bokukhishwa kwesici sento ngayinye. Ukuhlolwa, okusekelwe kumodeli ye-athomu kaRutherford-Bohr, kwenza ulwazi lucace kakhudlwana mayelana nezigigaba ezibandakanya izendlalelo ze-athomu, uguquko lukagesi, phakathi kokunye.


Ekupheleni kwalesi sivivinyo kufanele ukwazi uku:

sebenzisa i-bunsen burner;

sebenzisa i-fume hood;

bona ama-cations ngokusebenzisa i-spectrum ephumayo;

zihlobanisa ukuphuma kokukhanya kumodeli ye-athomu kaRutherford-Bohr.

2. UYISEBENZISAPHI LEMIQONDO?
Ukuhlaziywa kokuhlolwa kwe-Flame kuyinqubo esetshenziswa kakhulu kumalabhorethri amakhemikhali. Ngokungeziwe ekusizeni ukuqonda imodeli ye-athomu ye-Rutherford-Bohr, umkhuba ungasetshenziselwa ukubuka umbala ukuze kubonakale ukuba khona kwama-cations ensimbi ezintweni ezahlukene.


3. ISIZINGA
Lokhu kuhlola kusebenzisa izinto ezilandelayo: isivalo somusi, isishisi seBunsen namabhodlela esifutho aqukethe izixazululo ezinosawoti. Ngesikhathi sokuhlolwa uzohlonza futhi uhlukanise i-oxidizing nokunciphisa amalangabi, ngaphezu kokubona ngeso lengqondo umphumela wokuba khona kwama-metallic cations elangabini elikhishwe isishisi se-Bunsen.


4. UKUPHEPHA
Kulo mkhuba, kuzosetshenziswa amagilavu, ijazi laselabhu, imaski nezingilazi. Naphezu kokuhlolwa okwenziwa endaweni yokubeka intuthu, okokuvikela komuntu siqu kubalulekile endaweni yaselabhorethri. Iglavu izovimbela noma yikuphi ukusikeka okungenzeka noma ukungcoliswa ngama-agent ayingozi esikhumbeni, ijazi lebhu lizovikela umzimba wonke, imaski izovimbela ukufisa kwamaconsi okungenzeka akhishwe yisisombululo futhi izibuko zizovimbela ukungcoliswa kwamehlo.


5. SCENARIO
Ukuhlolwa kuzokwenziwa ku-fume hood. Uzosebenzisa i-Bunsen burner ukukhiqiza ilangabi. Amabhodlela okufutha aqukethe izixazululo ezahlukene zikasawoti wensimbi agcinwa ekhabetheni lesonto. Kufanele uzikhethe futhi uzisebenzise ukuze uqinisekise ukwenziwa kahle kokuhlolwa.