3. Go'aaminta Tusmada Kaalshiyamka
3.1 Dulmar Guud oo ku saabsan Habka Kaalshiyamka: Xal calcium ah oo xoogaa alkaline ah, ku dar xal potassium permanganate ah oo xad dhaaf ah. Kuleyli si aad u hubiso in falgalka oksaydhku uu dhammaado. Potassium permanganate-ka xad-dhaafka ah wuxuu ka xoreyn doonaa iodine potassium iodide xal acidic ah, kaas oo markaa lagu daro sodium thiosulfate xal caadi ah.
3.2 Tallaabooyinka Go'aaminta Kaalshiyamka: Miisaan qiyaastii 0.4g oo ah muunad kaalshiyam qaabaysan (sax ah ilaa 0.0002g), ku rid dhalo mug leh oo 250ml ah, ku mil biyo, ku mil ilaa calaamadda, oo si fiican u rux. Pipette 25.00ml (ama 10ml) oo xalkan ah ku rid dhalo iodine ah, ku dar 0.2g oo ah sodium carbonate aan biyo lahayn, oo si fiican u rux. Si sax ah ugu dar 50.00ml (ama 20ml) oo ah xalka caadiga ah ee potassium permanganate, ku kululee qubeys biyo ah muddo 30 daqiiqo ah, ka dibna qabooji. Ku dar 6ml oo ah xalka sulfuric acid iyo 2g oo ah potassium iodide, u daa inay mugdiga ku taagnaato 5 daqiiqo. Ku milmi xalka caadiga ah ee sodium thiosulfate; meel u dhow dhammaadka, ku dar 3ml oo ah tilmaame istaarij ah (0.5%), oo sii wad titration ilaa midabka buluugga ahi ka baaba'o. Samee tijaabo madhan isku mar.

Soo ogow faa'iidooyinka aan la barbar dhigi karin ee kalsiyum-ka - kor u qaad waxqabadka badeecadaada oo yaree kharashyada! Ma xiisaynaysaa inaad wax badan barato? Guji si aad hadda u weydiiso xalal loogu talagalay!