He taputapu hou ā mātou. Ka kaweakehia ā mātou hua ki te USA, ki te UK me ērā atu whenua, ā, he tino rongonui mātou i waenga i ngā kiritaki mō te Factory Liquid Glacial Acetic Acid 99.9% in Bulk Supply. Ka whakapau kaha mātou ki te whakatutuki, ki te hipa rānei i ngā whakaritenga a ngā kiritaki me ngā otinga kounga teitei, ngā ariā matatau, me te kaiwhakarato whai hua me te wā tika. E mihi ana mātou ki ngā kaihoko katoa.
He taputapu hou ā mātou. Ka kaweakehia ā mātou hua ki te USA, ki te UK me ērā atu, ā, he tino rangatira te tūnga o ā mātou kiritaki mō te wā roa. Kāore he mōrearea i te hoko i ā mātou otinga, engari he nui ngā hua ka puta mai ki tō kamupene. Ko tā mātou whāinga tonu he waihanga uara mō ngā kiritaki. Kei te rapu pono tā mātou kamupene i ngā kaihoko. He aha tāu e tatari ana? Haere mai ki te whakauru mai ki a mātou. Inaianei, kāore rānei.














Ihirangi Waikawa Acetic Hukapapa Wai
Mātāpono: Te ine i te whakapūmautanga me te otinga paerewa konutai hauwai mā te whakamahi i te phenolphthalein hei tohu. Ka tangohia te nui o te waikawa formic i roto i te tatau.
Ngā Tauhohenga me ngā Otinga:
Otinga paerewa hauwai konutai: c(NaOH) = 1 mol/L.
Tohu Phenolphthalein: 5 karamu/rita wairewa etanoru. Whakarewahia te 0.5 karamu phenolphthalein ki roto i te 100 ml o te 95% (V/V) etanoru ka whakakorea ki te wairewa konutai hauwai 4 karamu/rita kia puta rā anō he tae māwhero ngawari.
Taputapu: Pounamu pauna kōniko (3 ml te kaha); pūwero kawakore (50 ml te kaha). Waikawa Āketi Hukapapa Wai.
Tukanga: Paunahia kia tata ki te 2.5 karamu o te tauira ki roto i tētahi pounamu pauna kōniko, kia tika ki te 0.0001 karamu. Whakanohoia te pounamu ki roto i tētahi pounamu kōniko 250 ml kei roto he 50 ml o te wai mātotoru kāore he hauhā. Whakatuwheratia te taupoki o te pounamu, tāpirihia te 0.5 ml o te tohu phenolphthalein, ka whakatōtō ki te wairewa paerewa konutai hauwai tae noa ki te mau tonu te tae māwhero mō te 5 hēkona.