2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Acetylsalicylic acid yog a tsis muaj zog acid, thiab tsawg heev ntawm nws yog ionized hauv plab tom qab noj qhov ncauj. Acetylsalicylic acid yog sai absorbed los ntawm lub cell membrane nyob rau hauv acidic mob ntawm lub plab.
Yuav ua li cas cov kua qaub yog acetylsalicylic?
Cov tshuaj Aspirin (acetylsalicylic acid) Aspirin yog npaj los ntawm cov tshuaj synthesis los ntawm salicylic acid, los ntawm acetylation nrog acetic anhydride. Qhov hnyav molecular ntawm aspirin yog 180.16g / mol. Nws tsis muaj ntxhiab tsw, tsis muaj xim rau dawb crystals lossis crystalline hmoov.
Acetylsalicylic chav kawm twg yog nyob rau?
Aspirin yog cais raws li tsis xaiv cyclooxygenase (COX) inhibitorthiab muaj nyob rau hauv ntau cov koob tshuaj thiab cov ntawv, suav nrog cov ntsiav tshuaj chewable, suppositories, ncua kev tso tawm formulations, thiab lwm yam. Acetylsalicylic acid yog ib qho ua rau muaj kev phom sij heev rau cov menyuam yaus.
Vim li cas Aspirin thiaj li muaj kua qaub?
Science Concepts: Aspirin yog a tsis muaj zog acid thiab nws nyiam ionize (muab H atom) hauv nruab nrab aqueous ntawm pH siab. Cov tshuaj tsis hla cov kab mob lom thaum lawv ionized. Nyob rau hauv ib puag ncig pH qis zoo li lub plab (pH=2), cov tshuaj aspirin feem ntau sib koom ua ke thiab hla daim nyias nyias mus rau hauv cov hlab ntsha yooj yim.
Puas yog aspirin yog lub hauv paus lossis acid?
Aspirin nws tus kheej yog ib qho tshuaj acidic thiab ua rau plab hnyuv thiab regurgitation uas tuaj yeem ua rau qispH ntawm qhov ncauj [7].
Pom zoo:
Qhov txawv ntawm ib puag ncig thiab ib puag ncig rov qab yog dab tsi?
Muaj ob lub suab hais lus rau ob sab ntawm chav. Cov neeg hais lus muab tso rau ntawm ib sab lossis me ntsis tom qab qhov chaw mloog, xws li lub suab ntawd tig mus rau cov neeg mloog. Cov neeg hais lus rov qab tau muab tso rau tom qab sab ib puag ncig cov neeg hais lus thiab thaj chaw mloog.
Puas yog cov jaycees nyob ib puag ncig?
Hnub no, muaj kwv yees 32,000 Jaycees hauv Tebchaws Meskas, nws hais tias, nqis los ntawm 35,000 xyoo tas los. Pab pawg, uas nrhiav kev txhim kho kev coj noj coj ua los ntawm kev pabcuam hauv zej zog, muaj kev poob qis ntawm 12 txog 15 feem pua txhua xyoo, nws hais ntxiv.
Puas yog lub koob meej kiv puag ncig?
Lub Hwjchim Loj Hlob, tseem hu ua "Kev Tawm Tsam ntawm 1688" thiab "Kev Txhaum Ntshav," tau tshwm sim los ntawm 1688 txog 1689 hauv tebchaws Askiv. … Qhov kev tshwm sim thaum kawg tau hloov pauv li cas Askiv tau tswj hwm, muab Parliament muaj hwj chim ntau dua rau huab tais thiab cog cov noob rau kev pib ntawm kev nom kev tswv.
Yuav tsum yog ib tug ntseeg yog ib tug neeg nyob ib puag ncig?
Yuav ua tib zoo saib seb phau Vajlugkub yeej hais li cas txog kev saib xyuas ib puag ncig Vajtswv puas tau qhia tib neeg los ua Nws tus saib xyuas xwm txheej? Yog tias muaj, puas yog kev tsim txom ib puag ncig tsis mloog Vajtswv lus? … Ib tug ntseeg puas yog ib puag ncig?
Puas cov khoom pov tseg puas yog ib puag ncig zoo?
“Txhua yam khoom noj uas xa mus pov tseg yuav raug lim thiab ntes ntawm qhov chaw kho dej khib nyiab. … Nws sib cav hais tias ntxiv rau qhov yooj yim, cov khoom pov tseg yog qhov muaj txiaj ntsig zoo rau ecologicallyvim tias lawv hloov cov zaub mov pov tseg los ntawm qhov chaw pov tseg.
