Kimia

Raoult Txoj Cai hauv Chemistry Yog Dab Tsi? Hauv chemistry, tshwj xeeb tshaj yog hauv kev kawm txog cov tshuaj thiab cov khoom siv ntawm cov khoom sib xyaw, muaj ib lub tswv yim tseem ceeb uas feem ntau siv los piav qhia txog qhov siab ntawm cov pa dej ntawm cov khoom hloov pauv li cas thaum sib xyaw nrog lwm cov khoom. Lub tswv yim no hu ua Raoult Txoj Cai. Txoj cai no yog qhov tseem ceeb rau kev nkag siab txog ntau yam xwm txheej txhua hnub thiab cov txheej txheem kev lag luam,... nyeem ntxiv

Nkag Siab Txog Cov Tshuaj Tiv Thaiv Nuclear thiab Piv Txwv Cov tshuaj tiv thaiv nuclear yog ib qho tseem ceeb tshaj plaws hauv kev tshawb fawb niaj hnub no vim tias lawv cuam tshuam nrog kev hloov pauv uas tshwm sim hauv lub nucleus atomic. Tsis zoo li cov tshuaj tiv thaiv, uas cuam tshuam nrog kev hloov pauv lossis kev sib xyaw ua ke ntawm cov electrons hauv lub plhaub ntawm lub atom, cov tshuaj tiv thaiv nuclear tshwm sim ncaj qha hauv lub nucleus atomic, uas yog tsim los ntawm protons thiab neutrons. Yog li ntawd, cov tshuaj tiv thaiv nuclear tuaj yeem... nyeem ntxiv

Cov Txuj Ci Siv Thin Layer Chromatography Hauv Chaw Muag Tshuaj Kev Taw Qhia Thin Layer Chromatography (TLC) yog ib txoj kev siv tshuaj ntsuam uas siv ntau heev hauv kev lag luam tshuaj. Txoj kev no paub txog nws qhov yooj yim, ceev, thiab pheej yig, nrog rau nws lub peev xwm los muab cov ntaub ntawv tseem ceeb txog cov qauv ntawm cov qauv. Hauv cov chaw soj nstuam tshuaj, TLC feem ntau siv rau txhua yam los ntawm... nyeem ntxiv

Lub Luag Haujlwm ntawm Cov Khoom Sib Xyaws Carbohydrate hauv Lub Cev Cov khoom sib xyaw ua ke Carbohydrates yog cov organic sib xyaw uas tseem ceeb rau tib neeg lub neej. Hauv kev noj haus, cov carbohydrates suav nrog hauv pawg macronutrient, nrog rau cov protein thiab rog, vim tias lawv xav tau ntau heev los txhawb cov haujlwm ntawm lub cev. Cov carbohydrates feem ntau cuam tshuam nrog "cov peev txheej zog," tab sis lawv lub luag haujlwm yog qhov tseeb ntau dua ... nyeem ntxiv

Kev Siv Centrifuges Hauv Chav Kuaj Mob Centrifuges yog cov cuab yeej tseem ceeb hauv ntau lub chaw kuaj mob, los ntawm cov chaw kuaj mob hauv tsev kho mob, cov chaw kuaj mob biology, thiab cov chaw kuaj mob chemistry mus rau kev lag luam tshuaj thiab khoom noj. Lawv ua haujlwm raws li lub hauv paus ntsiab lus ntawm lub zog centrifugal, lub zog tsim los ntawm kev sib hloov ceev uas cais cov khoom me me hauv cov qauv raws li qhov sib txawv ntawm qhov ceev thiab qhov loj me. … nyeem ntxiv

Cov txiaj ntsig thiab kev phom sij ntawm cov tshuaj Formalin Formalin yog cov tshuaj uas muaj formaldehyde hauv dej, feem ntau muaj li ntawm 37% formaldehyde, feem ntau nrog me ntsis methanol ntxiv rau kom tiv thaiv kev polymerization. Hauv zej zog, lo lus "formalin" feem ntau yog siv los xa mus rau cov tshuaj preservative rau cov neeg tuag lossis cov kua muaj ntxhiab tsw qab. Ntawm qhov tod tes, formalin kuj ua lub luag haujlwm tseem ceeb hauv ntau yam kev lag luam ... nyeem ntxiv

Yuav Ua Li Cas Txheeb Xyuas Cov Qauv Empirical thiab Molecular Hauv chemistry, kev nkag siab txog cov khoom sib xyaw yog ib kauj ruam tseem ceeb hauv kev lees paub nws cov khoom, reactivity, thiab txawm tias nws npaj. Ob lub tswv yim tseem ceeb uas feem ntau tshwm sim hauv cov lus qhia chemistry yog cov qauv empirical thiab cov qauv molecular. Thaum ob qho tib si yog "cov qauv" rau ib qho sib xyaw, lawv muaj lub ntsiab lus sib txawv. Ib qho qauv empirical qhia txog qhov sib piv yooj yim tshaj plaws ntawm tus lej ntawm cov atoms constituent,... nyeem ntxiv

Cov Tshuaj Tiv Thaiv Hauv Cov Cell Electrolytic Lub cell electrolytic yog ib lub cuab yeej uas siv lub zog hluav taws xob los yuam cov tshuaj tiv thaiv uas feem ntau yuav tsis tshwm sim yam tsis tau npaj tseg. Tsis zoo li cov cell galvanic (voltaic cells), uas tsim hluav taws xob los ntawm cov tshuaj tiv thaiv redox yam tsis tau npaj tseg, cov cell electrolytic "siv" hluav taws xob los hloov cov tshuaj mus rau lwm daim ntawv los ntawm cov txheej txheem oxidation thiab txo qis. Cov thev naus laus zis no tseem ceeb heev… nyeem ntxiv

Kev Nkag Siab thiab Kev Ua Haujlwm ntawm Cov Tshuaj Reactors: Cov tshuaj reactors yog lub plawv ntawm ntau yam txheej txheem kev lag luam, tsim cov khoom tseem ceeb rau lub neej txhua hnub, los ntawm roj thiab chiv rau tshuaj thiab yas rau cov neeg ntxuav. Hauv lub reactor, cov khoom siv raw (reactants) dhau los ua cov tshuaj hloov pauv mus rau hauv cov khoom los ntawm kev tswj hwm cov tshuaj tiv thaiv. Vim tias cov tshuaj tiv thaiv tuaj yeem ua tiav sai lossis qeeb, lawv tsim cua sov... nyeem ntxiv

Lub Luag Haujlwm ntawm Cov Catalysts hauv Kev Lag Luam Tshuaj Lom Zem Kev lag luam tshuaj lom neeg niaj hnub no tsis tuaj yeem sib cais los ntawm qhov muaj cov catalysts. Yuav luag txhua yam khoom siv tshuaj lom neeg tseem ceeb - los ntawm roj thiab chiv rau cov yas thiab tshuaj rau cov neeg ntxuav - yog tsim los ntawm cov tshuaj lom neeg uas xav tau cov xwm txheej tshwj xeeb kom ua tiav sai thiab zoo. Qhov no yog qhov uas cov catalysts ua lub luag haujlwm tseem ceeb: ua kom cov nqi tshuaj lom neeg sai dua, ua kom muaj kev xaiv ntau dua rau cov khoom xav tau, thiab ... nyeem ntxiv