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Analysis shows that a metal oxide has the empirical formula M_(0.98)O_(1.00). Calculate the percent- age of M^(2+) and M^(3+) ions in this crystal. |
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Answer» Solution :The formula `M_(0.98)O_(1.00)` suggests that, SAY out of 100 metal ions, TWO are missing. These two missing ions would have CARRIED a charge of +4 units. This charge is balanced by the presence of `4M^(3+)` ions. Thus, number of `M^(2+)" ions" = 98 - 4 = 94` Percentage of `M^(3+)" ions " = (4)/(98) xx 100 = 4.08` Percentage of `M^(2+)" ions "= (94)/(96) xx 100 = 95.92`. |
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