Vim li cas graphite insoluble hauv dej?
Vim li cas graphite insoluble hauv dej?

Video: Vim li cas graphite insoluble hauv dej?

Video: Vim li cas graphite insoluble hauv dej?
Video: Yog hmoov dab tsi - Gao Nou Kue ft. Mang Vang (Official Music Video) New song 2020 2024, Kaum ib hlis
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Graphite yog insoluble hauv dej thiab organicsolvents - rau tib yam vim li cas pob zeb diamond yog insoluble . Attractions ntawm hnyav molecules thiab carbon atoms yuav yeej tsis muaj zog txaus los kov yeej cov muaj zog covalent bonds nyob rau hauv graphite . ua hluav taws xob.

Tom qab ntawd, graphite hmoov puas soluble hauv dej?

Nws yog qhov yooj yim graphite uas yog soluble hauv dej . Tsis tu ncua graphite tuaj yeem kis tau nrog dej me me, tab sis qhov nruab nrab no txawv. Thaum twg dej - soluble graphite yog tov nrog dej , nws yuav luag zoo li tus number case ntxuav. Loj hais ntawm graphite yog deb dhau lawm thiab nonpolar yuav daws tau los ntawm ib tug polar solventlike dej.

Tsis tas li ntawd, yog vim li cas covalent tes hauj lwm insoluble? Network covalent cov khoom yog feem ntau insoluble , vim hais tias qhov attraction ntawm cov kuab tshuaj molecules thiab covalently bonded atoms yog deb dhau lawm tsis muaj zog toovercome lub zog ntawm lub covalent daim ntawv cog lus.

Kuj nug, graphite sib raug zoo li cas?

Hauv graphite , txhua carbon atom yog covalently ua phooj ywg rau 3 lwm carbon atoms. Cov electrons ntxiv no yog delocalised, los yog dawb txav mus, nyob rau hauv thaj tsam ntawm cov khaubncaws sab nraud povtseg ntawm carbonatoms. Raws li cov electrons dawb txav lawv muaj peev xwm nqa tau thiab yog li graphite muaj peev xwm conductelectricity.

Puas yog graphite soluble hauv ethanol?

Cov qauv loj heev covalent ua graphite insoluble nyob rau hauv tej yam hnyav. Graphite muaj lub siab melting pointdue rau cov qauv loj heev covalent, thiaj li hais tias nws tsis volatile. Structure ntawm graphite Hauv kev sim 5, calcium chloride yog soluble hauv dej thiab ethanol tab sis tsis yog hexane. Lawv yog insoluble nyob rau hauv non-polar solvents.

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