Friedrich Wohler tau tawm tsam txoj kev xav tseem ceeb li cas?
Friedrich Wohler tau tawm tsam txoj kev xav tseem ceeb li cas?

Video: Friedrich Wohler tau tawm tsam txoj kev xav tseem ceeb li cas?

Video: Friedrich Wohler tau tawm tsam txoj kev xav tseem ceeb li cas?
Video: Friedrich Wöhler - biografia in pillole 2024, Kaum ib hlis
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German chemist uas yog ib tug tub kawm ntawm Berzelius. Hauv kev sim npaj ammonium cyanate los ntawm cov nyiaj cyanide thiab ammonium chloride, nws tau tsim urea hauv 1828. yog thawj organic synthesis, thiab tawg lub vitalism txoj kev xav.

Tsis tas li ntawd, txoj kev xav ntawm vitalism tau raug pov thawj li cas?

Cov kev xav yog tsis pom zoo nyob rau hauv thaum ntxov ib feem ntawm lub 19th xyoo pua. Cov kev xav yog tsis pom zoo los ntawm Friedrich Wohler, uas tau pom tias cov cua sov nyiaj cyanate (ib qho khoom siv tsis zoo) nrog ammonium chloride (lwm cov khoom siv tsis zoo) tsim urea, tsis muaj kev pab los ntawm cov kab mob muaj sia lossis ib feem ntawm cov kab mob muaj sia.

Ib yam li ntawd, txoj kev xav tseem ceeb yog dab tsi? Tseem ceeb yog txoj kev ntseeg hais tias "cov kab mob muaj sia nyob yog qhov sib txawv ntawm cov chaw tsis muaj sia vim tias lawv muaj qee yam tsis yog lub cev lossis raug tswj hwm los ntawm cov ntsiab cai sib txawv dua li cov khoom tsis muaj sia".

Tom qab ntawd, Friedrich Wohler nrhiav tau dab tsi?

Friedrich Wöhler yog ib tug kws tshuaj German nto moo uas paub zoo tshaj plaws ntawm kev sib txuas ntawm urea, ib qho organic compound, los ntawm ammonium cyanate, ib qho ntsev inorganic, yog li disproving txoj kev xav ntawm 'vitalism', tias cov organic tsuas yog tsim los ntawm cov khoom muaj sia.

Urea pab dag dag zog li cas?

- Raws li txoj kev xav ntawm kev tseem ceeb nws yog kwv yees tias urea tsuas yog tsim nyob rau hauv cov kab mob muaj sia vim nws yog ib qho organic compound, yog li lub zog tseem ceeb yog xav tau. - Nws tau pab dag txoj kev xav ntawm kev tseem ceeb tab sis ua tsis disprove nws kiag li.

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