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(b) What is the total charge of 1.6g O^(...

(b) What is the total charge of 1.6g `O^(2-)` ion ?

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`1.6 gO^(2-)="0.1 mol "O^(2-)" ion 0.1 mol "O^(2-)" ion carries "2xxFxx0.1=0.2xx6500C`
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