Thib ob, daim ntawv tuaj yeem hloov xim rau lwm yam ntxiv nrog rau cov tshuaj tiv thaiv acid-base. Piv txwv li, daim ntawv xiav litmus tig dawb hauv cov roj chlorine. Qhov kev hloov xim no yog vim yog cov tshuaj dawb ntawm cov xim los ntawm hypochlorite ions, tsis yog acidity/basicity.
Daim ntawv liab litmus puas tuaj yeem hloov dawb?
Ib daim ntawv liab litmus hloov dawb thaum nws dipped rau hauv freshly made aqueous solution of white solid.
Vim li cas ntawv liab litmus tig dawb?
Cov tshuaj acidic tsim rau ntawm daim ntawv damp litmus tig qhov taw qhia liab. Tom qab ntawd cov tshuaj dawb hloov xim liab mus rau dawb.
Daim ntawv litmus tig xim dab tsi?
Litmus qhov taw qhia cov tshuaj hloov red hauv cov kua qaubthiab xiav hauv cov tshuaj alkaline. Nws hloov ntshav hauv cov kev daws teeb meem nruab nrab.
Yuav ua li cas rau daim ntawv liab litmus hauv kua qaub?
Kev siv lub ntsiab ntawm litmus yog kuaj seb cov tshuaj puas yog acidic lossis yooj yim. Lub teeb-xiav litmus ntawv hloov liab nyob rau hauv acidiccov xwm txheej, thiab cov ntawv liab litmus hloov xim xiav raws li qhov yooj yim lossis alkaline, nrog cov xim hloov pauv ntawm pH ntau ntawm 4.5-8.3 ntawm 25 ° C (77°F).
