ZQT-s_Lab-is_AKROBATSHI.pdf

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ZQT-s_Lab-is_AKROBATSHI.pdf

mJavas (elgamtarobis gasadideblad) da eTilis spirts

(spilenZis daJangvis Tavidan asacieblad). xsnaris Sedgeniloba

aseTia (g/dm 3 ): CuSO4·5H2O – 125; eTilis

spirti – 50; H2SO4 – 50.

kulonometrSi denis gavlisas anodidan xsnarSi

gadadis spilenZis ionebi, xolo kaTodze aRdgeba spilenZis

ekvivalenturi raodenoba:

Cu2+ + 2e- Cu

kulonometrSi gavlili mTeli deni mxolod am

reaqciaze ixarjeba, amitom gamoyofili spilenZis raodenobis

mixedviT zustad SegviZlia ganvsazRvroT gatarebuli

eleqtrobis raodenoba. 96500 kuloni anu IF

eleqtroba, rac amper/saaTebSi Seadgens 26,8 amp/sT-s,

faradeis kanonis safuZvelze gamoyofs erT gram-ekvivalent

spilenZs, anu 31,785 g-s.

cdis dawyebamde saWiroa Sesruldes moasamzadebeli

samuSaoebi:

a) unda ganisazRvros naxSiris anodis im nawilis

farTobi, romelic CaSvebulia NaCl-is xsnarSi;

b) unda gamoviTvaloT denis Zala, romelic aucilebelia

denis anoduri simkvrivis – Da-s – uzrunvelsayofad.

I = Da·S, sadac I aris denis Zala, amp;

Da – denis anoduri simkvrive, amp/dm2 ;

S - anodis samuSao farTobi, dm2 .

laboratoriul pirobebSi denis anodur simkvrives

iReben 3-3,5 amp/dm2-s (warmoebaSi - 5-15 amp/dm2 );

g) kulonometris kaTodi unda gaixexos zumfaris

qaRaldiT, gairecxos, gaSres da aiwonos 0,01 g-is sizustiT;

61

d) anodur da kaTodur sivrceebSi unda Caisxas

NaCl-is najeri xsnaris gansazRvruli raodenoba;

e) unda aiwyos danadgari, eleqtroqseli da Semowmdes

laborantTan erTad;

v) CairTos mudmivi deni bolomde aweuli reostatiT

da misi saSualebiT dayendes ampermetrze gamoangariSebuli

denis Zala;

z) eleqtrolizis procesi Catardes mocemuli

drois ganmavlobaSi.

eleqtrolizis procesSi iReben airis sinjebs

airsazomSi an uSualod ГХП-3 airanalizatorSi da

sazRvraven masSi qloris, naxSirorJangisa da Jangbadis

Semcvelobas. cdis damTavrebis Semdeg iReben sinjs

kaToduri sivrcidan (6-10 sm3 xsnari) warmoqmnili natriumis

tutis faqtobrivi raodenobis gansasazRvravad.

sakvlev xsnars titraven 0,1 n marilmJavas xsnariT;

indikatorad iyeneben fenolftaleins.

warmoqmnili natriumis tutis raodenobis mixedviT

gaiangariSeba NaOH-is %-uli gamosavali denis

mimarT:

G

η =

G

pr ,

sadac G pr aris eleqtrolizis dros faqtobrivad gamoyofili

NaOH-is raodenoba, g;

G T - NaOH-is raodenoba, romelic unda warmoqmniliyo

Teoriulad faradeis kanonis mixedviT

eleqtrobis igive xarjis SemTxvevaSi.

Iτ A

GT

= , an GT = IτE, nF

sadac I aris denis Zala, amp;

62

T

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