Calculate the number of Ions number of oxygen atom and total charge in 3 gram Co₃^2-.
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formula units =Mass of species/formula mass ×6.02×10 ^23 = 3/60×6.02×10^23=. 3.0×10^22(approx) Number of oxygen atoms =Number of formula units×3= 3.0×3×10^22= 9.0×10^22 Charge=3.0×10^22×3. 2×10^-19=9.6×10^3 columb
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