3. Nchọpụta ọdịnaya nke calcium
3.1 Nchịkọta Usoro Calcium Formate: N'ime mmiri calcium formate dị ntakịrị alkaline, tinye oke potassium permanganate standard solution. Kpoo ọkụ iji hụ na mmeghachi omume oxidation ahụ na-aga n'ihu ruo mgbe ọ ga-agwụ. Potassium permanganate gafere ga-ewepụ iodine site na potassium iodide na mmiri acidic, nke a na-etinye na mmiri sodium thiosulfate standard solution.
3.2 Usoro Nchọpụta nke Calcium Formate: Tụọ ihe dị ka 0.4g nke ihe nlele calcium formate (nke ziri ezi ruo 0.0002g), tinye ya na karama volumetric 250ml, gbazee ya na mmiri, gwakọta ya ruo mgbe ọ ga-adị, ma maa jijiji nke ọma. Pipette 25.00ml (ma ọ bụ 10ml) nke ihe ngwọta a n'ime karama iodine, tinye 0.2g nke sodium carbonate anhydrous, ma maa jijiji nke ọma. Tinye 50.00ml (ma ọ bụ 20ml) nke ihe ngwọta potassium permanganate nke ọma, kpoo ya ọkụ na mmiri ịsa ahụ maka nkeji 30, wee jụọ oyi. Tinye 6ml nke ihe ngwọta sulfuric acid na 2g nke potassium iodide, hapụ ya ka ọ nọrọ n'ọchịchịrị maka nkeji 5. Tinye titrates na ihe ngwọta sodium thiosulfate ọkọlọtọ; nso njedebe, tinye 3ml nke ihe ngosi starch (0.5%), ma nọgide na-atụ titration ruo mgbe agba anụnụ anụnụ ga-apụ n'anya. Mee nnwale efu n'otu oge.

Chọpụta uru dị ukwuu nke calcium - mee ka arụmọrụ ngwaahịa gị dịkwuo mma ma belata ọnụ ahịa! Ị chọrọ ịmatakwu? Pịa ka ịjụ ugbu a maka azịza ahaziri ahazi!