Koj ua li cas 70 feem pua ntawm ethanol los ntawm 190 pov thawj?
Koj ua li cas 70 feem pua ntawm ethanol los ntawm 190 pov thawj?

Video: Koj ua li cas 70 feem pua ntawm ethanol los ntawm 190 pov thawj?

Video: Koj ua li cas 70 feem pua ntawm ethanol los ntawm 190 pov thawj?
Video: 1993 Mercedes-Benz 190E Avantgarde Azzurro Cosworth Project Restoration in Turkey ๐Ÿ‡น๐Ÿ‡ท 2024, Lub Xya hli ntuj
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Ntawm no, koj ua li cas 70 feem pua ethanol los ntawm 95 feem pua?

Piv txwv li, rau ua 70 % ethanol ntawm 95 % ethanol , nqa 70 mL ua 95 % ethanol thiab ntxiv dej txaus kom nqa lub ntim rau 95 mL. Ces koj yuav muaj 95 mL ua 70 % ethanol.

vim li cas 70 Cawv yog tshuaj tua kab mob zoo dua li 95 cawv? 70 % feem pua cawv yog qhov zoo tshaj rau kev daws teeb meem. Ntshiab cawv coagulates protein hauv kev sib cuag. Yog 70 feem pua ntawm cawv yog poured rau ib leeg celled kab mob, lub diluted cawv kuj coagulates cov protein, tab sis ntawm qhov qeeb qeeb, kom nws nkag mus rau txhua txoj hauv kev ntawm tes ua ntej coagulation tuaj yeem thaiv nws.

Yog li ntawd, vim li cas 70 cawv siv rau kev ua kom tsis muaj menyuam?

Qhov tseem ceeb yog qhov ntawd xwb 70 % kev daws ntawm isopropyl cawv ua raws li tshuaj tua kab mob tua tag nrho cov kab mob saum npoo av. Nws yog siv los tua kab mob ntawm tes thiab cov cuab yeej ntog hauv tshuaj. 70 % isopropyl hmoov cawv tshuaj tua kab mob los ntawm dissolving plasma membrane ntawm lub cell phab ntsa.

Dab tsi yog qhov hnyav hauv 70% cawv daws?

Teb thiab piav qhia: Hauv cov tshuaj muab ob qho tib si cawv thiab dej muaj nyob rau hauv cov kua hauv lub xeev, thiab cawv yog tam sim no nyob rau hauv ib tug loj npaum li cas, yog li cawv yog hnyav thiab dej yog solute.

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