3. Kuziba zili mukati ka calcium
3.1 Nzila ya Calcium Formate Mubufwiifwi: Mumusamu wa calcium formate uujisi busani buniini, bika musamu uutegwa potassium permanganate. Pya kuchitila kuti kusanduka kwa oxidation kuzumanane kusikila kumamanino. I potassium permanganate iiyungizyidwe iyoogwisya iodine kuzwa ku potassium iodide mumusamu uujisi acidi, ooyo mpawo uyoosandulwa amusamu wa sodium thiosulfate.
3.2 Ntaamu zyakuzyiba bupange bwa calcium: Pima 0.4g ya calcium formate (kugolela kusika ku 0.0002g), kobika mu 250ml volumetric flask, kozinyonganya mumaanzi, kozisofwaazya kusikila mpokugolela, mpawo kozizungaanya obotu. Bika 25.00ml (naa 10ml) yamusamu ooyu mubbokesi lya iodine, ubike 0.2g ya anhydrous sodium carbonate, mpawo uzungaanye kabotu. Kobikka 50.00ml (naa 20ml) ya potassium permanganate standard solution, ubike mumaanzi kwamaminiti aali 30, mpawo utontozye. Kosanzya 6ml ya sulfuric acid solution antoomwe a 2g ya potassium iodide, ileke iime mumudima kwamaminiti aali 5. Titrate a sodium thiosulfate standard solution; afwaafwi kumamanino, bika 3ml ya starch indicator (0.5%), mpawo uzumanane kuchincha kusikila mubala wa bbululu wamana. Chita musunko uutakwe chintu achiindi chomwe.

ziba bubotu butakonzyi kweenzyegwa bwa calcium formate—sumpula bubotu bwachintu chako akugwisya muulo! Uyanda kwiiya zyiingi? Dina kuti ubuzye lino kuti ujane nzila zyakumanizya mapenzi!