A litmus mayeso - chizindikiro chilengedwe kudziwa mlingo wa acidity ndi alkalinity

Litmus mayeso ndi mankhwala mankhwala Tingafinye litmus pepala. Izo ntchito kudziwa mlingo wa acidity kapena alkalinity chilengedwe. Isanafike litmus pepala impregnated zitsulo, icho chinali kugwiritsidwa ntchito nokha monga chizindikiro ndi reagent mankhwala. Choyamba ntchito ngati chizindikiro litmus Spanish alchemist Arnaldo de A Vilanova pafupifupi 1300g. mankhwala chiyambi zachilengedwe, izo lachokera ku lichens.

A mayeso litmus - ndi chizindikiro asidi-m'munsi, umene uli sing'anga acidic akutembenukira wofiira, ndi zamchere - buluu. Malinga ndi mtundu mwamphamvu, ntchito sikelo wapadera, kudziwa pH. The pH chizindikiro kapena pH ndi kachulukidwe muyeso wa chiŵerengero mu madzi a H + ndipo OH- kuti anapanga pamene madzi dissociation. Firiji mu njira ndale, pH 7, mu pH acidic <7, zamchere pH> 7.

Litmus pepala ntchito mu njila mwachilungamo zosavuta: iwe uyenera kutenga izo mu umodzi mapeto ndi choviikidwa mu madzi ena sing'anga. Sikuti kuti sanatchule pepala kwambiri mu madzi. The chifukwa zikuoneka yomweyo: Lachitatu adatchithisira m'mphepete kapena kusintha mtundu kapena ayi. Ndiye, pepala ili poyerekeza ndi makhalidwe muyezo, amene waikamo monga sikelo pa chubu kapena pa ma CD imene kunayera. mayeso Litmus imatengedwa kuti ndi chizindikiro konsekonse, monga ntchito angathe kudziwa mlingo ndi acidity ndi alkalinity a sing'anga.

chizindikiro ichi zikhoza kupangidwa ndi kunyumba, atakhala osachepera nthawi ndi ndalama. Muyenera wofiira, buluu kapena wofiirira kabichi, fyuluta kapena chigwa pepala woyera. Kabichi ayenera kabati, wiritsani kwa mphindi 30-35, ndiye kukhetsa ndi Finyani pang'onopang'ono. Kabichi kudzakudikira sakumfuna, ndi msuzi chifukwa kuika n'kupanga kudula kuchokera pa pepala. Pambuyo pepala ndi ankawaviika, kuchotsa ndi youma. Khalani pepala ili kufunika ziume muli, kutali dzuwa. Pogwiritsa ntchito ngati ndi kudzikonda anapanga chizindikiro ayenera kuganizira kuti amapereka zikuluzikulu pang'ono muyeso zolakwa kuposa fakitale.

A mayeso litmus wofewa ake a ntchito ndiponso ntchito zake zosiyanasiyana mu tanthawuzo la pH Anthu ambiri amagwiritsa ntchito osati pa zatsopano mankhwala masukulu ndi Laboratories matenda, komanso kunyumba. Motero, munthu aliyense mosavuta, ntchito litmus pepala, kufunika pH akhoza kumvetsa madzimadzi aliyense zamoyo njira, zosakaniza - malovu, mkodzo, mkaka wam'mawere, madzi, sopo, etc. Magawo pH a mthupi m'pofunika paokha kulamulira mu matenda ena. Monga litmus mayeso chimagwiritsidwa ntchito alimi kunyumba kudziwa mlingo wa acidity ndi alkalinity wa dothi. N'zotheka ntchito kudziwa pH zodzoladzola, makamaka ntchito mosamala khungu, chifukwa Choncho iwo ayenera kukhala pakatikati.