Cov txheej txheem:
- Picric acid yog vim li cas peb thiaj hu nws cov kua qaub txawm tias nws tsis muaj pawg COOH?
- Puas yog picric acid ntau acidic?
- YPuas yog picric acid yog carboxylic acid?
- Yuav ua li cas cov kua qaub siv tawg?
Video: Vim li cas picric acid hu ua acid?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Picric acid (los ntawm Greek pikros, "iab") yog li lub npe los ntawm 19th-xyoo pua Fabkis chemist Jean-Baptiste-André Dumas vim yog qhov iab heev ntawm nws cov xim daj aqueous tov.
Picric acid yog vim li cas peb thiaj hu nws cov kua qaub txawm tias nws tsis muaj pawg COOH?
Acidic xwm ntawm picric acid: Vim rau cov qauv resonant ntawm picric acid nws ruaj khov heev. Conjugate puag tsis ua ke nrog poob ${H^ + }. $ Qhov no yog vim li cas TNP thiaj li muaj zog acid txawm tias nws tsis muaj $ - COOH$ pab pawg.
Puas yog picric acid ntau acidic?
Picric acid yog 2, 4, 6-trinitrophenol. Nws, vim muaj peb −I qhia −NO2 pawg, yog ntau acidic dua acetic acidthiab benzoic acid.
YPuas yog picric acid yog carboxylic acid?
Option A yog picric acid. Cov qauv ntawm picric acid yog, Raws li, peb tuaj yeem pom tsis muaj carboxyl ua haujlwm pab pawg tam sim no hauv cov qauv.
Yuav ua li cas cov kua qaub siv tawg?
Siv. Picric acid yog siv los tsim cov khoom tawg, qhov sib tw, thiab cov roj teeb hluav taws xob.
Pom zoo:
Kev hloov pauv feem ntau tsis zoo vim li cas lossis vim li cas ho tsis?
Feem ntau ntawm kev hloov pauv yog nruab nrab ntawm lawv cov teebmeem ntawm cov kab mob uas lawv tshwm sim. Kev hloov pauv tau zoo tuaj yeem ua ntau dua los ntawm kev xaiv ntuj. Kev hloov pauv tsis zoo yuav ua rau muaj kab mob caj ces lossis mob qog noj ntshav .
Vim li cas thiab vim li cas thiaj txhais tau?
Txhua qhov laj thawj thiab qhov laj thawj, ib yam li hauv Nws tau mus rau qhov laj thawj thiab yog li ntawm lub koom haum kev saws me nyuam txoj cai thiab cov txheej txheem. Cov lus no niaj hnub no yog redundancy vim yog vim li cas thiab yog li ntawd txhais tau tib yamYav tas los, txawm li cas los xij, vim li cas thiaj qhia qhov laj thawj rau qee yam thiab yog li ntawd nws los ua li cas.
Puas tib neeg hloov zuj zus los ntawm chimps vim li cas los yog vim li cas ho tsis?
Nws yog ib lo lus teb yooj yim: Tib neeg tsis tau hloov zuj zus los ntawm chimpanzees los yog lwm yam zoo kawg nkaus apes uas nyob niaj hnub no. Peb sib koom ib tug poj koob yawm txwv uas nyob kwv yees li 10 lab xyoo dhau los . Puas tib neeg hloov zuj zus los ntawm apes?
Vim li cas acetic acid yog acid?
Lub chaw hydrogen hauv pawg carboxyl (−COOH) hauv carboxylic acids xws li acetic acid tuaj yeem cais tawm ntawm cov molecule los ntawm ionization: CH 3 COOH ⇌ CH 3 CO 2 - + H. Vim yog qhov tso tawm ntawm proton (H +), acetic acid muaj acidic cim Acetic acid yog ib qho tsis muaj zog monoprotic acid .
Yuav sau li cas vim li cas thiab yog vim li cas?
Kev txhais ntawm yog vim li cas thiab (tus) yog li ntawd: yog vim li cas rau ib yam Nws piav qhia vim li cas thiab yog li ntawd ntawm tus nqi nce . Yuav ua li cas thiab yog vim li cas? Txhua qhov laj thawj thiab qhov laj thawj, ib yam li hauv Nws tau mus rau qhov laj thawj thiab yog li ntawm lub koom haum kev saws me nyuam txoj cai thiab cov txheej txheem.
