【Daily Question】2018.7.4

2018-07-04View Original

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Fill-in-the-blank: In the KMnO4 method for determining the Ca content in lime, it is first precipitated as CaC2O4; after filtration and washing, it is dissolved in H2SO4. Finally, KMnO4 is used to titrate H2C2O4. The basic unit of Ca is ( ). 1/2Ca

Reply #22018-07-04

In the KMnO4 method for determining the Ca content in lime, Ca is first precipitated as CaC2O4; after filtration and washing, it is dissolved in H2SO4. Finally, KMnO4 is used to titrate H2C2O4, with the basic unit for Ca being (1/2Ca).

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【Daily Question】2018.7.4

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