Xa sikulebhu sisebenzisa izixhobo ezithile ezisinceda ukuba senze imilinganiselo kunye novavanyo. Esinye sezixhobo ezisetyenziswa ngokubanzi esimele impumelelo enkulu kwihlabathi lekhemistri kunye nefizikiki Ivolumu yevolumu. Sisixhobo esiluncedo kakhulu ekuqhubeleni phambili nasekufumaneni izifundo ezininzi zesayensi. Ngokunceda ukubala ngokuchanekileyo umthamo wotywala onokulinganiswa, iye yaba sesinye sezixhobo ezisetyenziswa kakhulu.
Kweli nqaku siza kukuxelela zonke iimpawu, ukubaluleka kunye nendlela yokusebenzisa iflum yevolumu.
Yintoni iflaskum yevolumu
Iyaziwa ngegama likaFiola kwaye ayisiyonto ngaphandle kwesikhongozeli seglasi esisetyenziswa kwiilebhu. Ndiyabulela kwesi sixhobo, imilinganiselo ngqo yamanqanaba olwelo inokufunyanwa kwaye isetyenziselwa ukudibanisa izinto eziza kusetyenziswa kamva. Eyona nto iqhelekileyo kukuba yenziwe ngeglasi kwaye inentamo ende nexineneyo. Umzantsi wayo ucabalele ngokupheleleyo. Entanyeni kukho uphawu olwaziwayo njenge-gauging, Kungoko igama layo. Umthamo uphetheyo ubonakalisa umthamo wolwelo ekufuneka iflum yevolumu yokuthambisa kufuneka iqulethe ukuze kuqinisekiswe kwaye kwenziwe umlinganiso ngqo. Ngale ndlela, imilinganiselo efanayo iyafezekiswa ngomda omncinci wempazamo.
Ukuphawula intamo kuqala kwisiseko esimile okwepere kwaye kubaleka ukuwela intamo emxinwa. Ngale ndlela, kunokwenzeka ukubonelela ngeentlobo ezahlukeneyo zemilinganiselo yevolumu.
Yenzelwe ntoni
Ibhotile yevolumetric isetyenziselwa ukulinganisa ngokuchanekileyo imiqulu eyahlukeneyo yolwelo enokufumaneka elabhoratri. Zingasetyenziselwa ukwenza ukuxubana kwezinto ezahlukeneyo kunye nokufezekisa ukwenziwa ngaphandle kokulayisha ngaphezulu komsebenzi wazo. Gcina ukhumbula ukuba Iiflask ezininzi zilungele ukusetyenziswa kwiilebhu zesikolo. Ezi bhotile zihlala zinezinto ezisisiseko kwaye zithambile. Nangona kunjalo, kwiilebhu zaseburhulumenteni kukho ezinye iintlobo zeeflask ezithe kratya ezineengoma ezahlukeneyo kunye nokuxhasa amandla amakhulu.
Eyona nto ibaluleke kakhulu ngaphambi kokuba uthenge iflask yevolumetric kukwazi ukuba izakusetyenziselwa ntoni. Ngale ndlela, siyakwazi ukukhetha eyona modeli ifanelekileyo kuxhomekeke kusetyenziso oluza kunikwa lona. Umsebenzi ulula. Kuyimfuneko kuphela ukwazi ukuba zeziphi iimveliso ezifunekayo ukuze ufumane umlinganiso ochanekileyo. Lo mlinganiselo unokuba ngumthamo wolwelo okanye umxube wazo. Owona msebenzi wevolumetric flask kukulinganisa umthamo wolwelo olusetyenziswa yilabhoratri. Ingasetyenziselwa naluphi na uhlobo lovavanyo okanye ulingelo.
Elona nyathelo libaluleke kakhulu kukwazi xa usebenzisa iflum ye-volumetric kukwenza amanqaku. Ukwenza kukugcwalisa iflumumric ngendlela efanelekileyo. Ukwenza oku, kungcono ukusebenzisa ifanele kuba inencopho ebinikiweyo. Njengoko ithambile kwaye iphakamile, kulula ukubeka ulwelo ngaphakathi kwibhotile yevolumetric. Ndiyabulela koku, siphumelele ngokuchanekileyo kuba sibaleka umngcipheko wokuphalaza. Iya kusinceda ukuba sibe nemilinganiselo echanekileyo ngakumbi kunye nentuthuzelo enkulu kwinkqubo.
Elinye inqaku ekufuneka lithathelwe ingqalelo xa sisebenzisa iflum ye-volumetric ngumzuzu apho kufuneka sifeze khona imilinganiselo. Kuya kufuneka ujolise kwindawo ephambili yegophe efezekisa isisombululo. Kuya kufuneka sithathele ingqalelo ukuba iiflask ezininzi zinemiphetho ephezulu kwaye ezinye zinemiphetho esezantsi. Ngayiphi na imeko, into ebalulekileyo kukuba kufuneka sihlale sijonga umthamo. Le kuphela kwendlela yokubanakho ukulawula kakuhle indawo esembindini wesisombululo. Kufuneka sijonge umthamo njengomgca othe ngqo ukuze sikwazi ukuqinisekisa ukubalwa ngokuchanekileyo kolwelo. Ayinakubonwa njenge-ellipse okanye asizukufumana iziphumo esizilindeleyo.
Ukusetyenziswa kwebhokisi yevolumetric
Ayisetyenziselwa kuphela ukulinganisa umthamo wolwelo, kodwa nokwenza imixube eyahlukeneyo. Sizahlulahlula iindlela ezahlukeneyo zokusebenzisa iflum:
- Linganisa umthamo wolwelo: Qaphela amanqaku asentanyeni yeflask njengesikhokelo. Siyabulela kubo, sinokulinganisa umthamo welwelo ngokujonga ijika nokuba phezulu okanye ezantsi.
- Lungisa izisombululo: Olu hlobo lwebhotile lukwasebenza ukulungiselela izisombululo. Ukuba siyalazi inani lesinyibilikisi kunye nesinyibilikisi, sinokuxuba isixa esisifunayo. Ubunzima besolute bumiselwe ngokulinganisela. Isiphawuli emva koko sibekwe kwiflask volumetric kwaye sishukunyiswe de zonke izinto zidityaniswe ngaphandle komngcipheko wokuchithwa kwesisombululo.
Iindidi zebhokisi yevolumetric
Kukho iintlobo ezahlukeneyo zebhotile yevolumetric ngokweempawu ezithile. Makhe sihlalutye ukuba ziyintoni:
- Ngokuchaneka: Sineeflasks zevolumetric zohlobo A ezisetyenziselwa ukulinganisa ulwelo kunye nokulungisa imixube eyahlukeneyo. Zisetyenziswa kwiilebhu zekhemistri ezihambele phambili. Iiflasks zeVolumetric uhlobo B zezo zifunyanwa kwiilebhu zesikolo zineemfuno ezisezantsi.
- Ngokomthamo wevolumu: Xa kuziwa kumthamo wevolumetric flask, asibhekiseli kwi-1 ne-2 ml yeeflask, nangona ezo ziqala kwi-25 ml ukuya kwi-500 ml zihlala zisetyenziswa.
- Ngokombala: kuxhomekeke kwinto enje eyenziweyo unokufumana imibala eyahlukileyo. Abanye banombala ofanelekileyo ukuze bakwazi ukuqhuba imixube enovakalelo ekukhanyeni. Gcina ukhumbula ukuba kufuneka babe nococeko olulungileyo kulo naluphi na uhlobo lwenqanaba. Ukuba awunalo ucoceko olulungileyo, imilinganiselo inokuchaphazeleka kwaye iguqulwe.
Njengoko ubona, iflatum yevolumu yenye yezona zixhobo zisetyenziswa kakhulu kwihlabathi lekhemistri kunye nefiziksi kunye neelebhu. Ndiyathemba ukuba olu lwazi ungafunda ngakumbi malunga neflaskum kunye neempawu zayo eziphambili.