The compound Y Ba2Cu3O7, which shows superconductivity, has coppe… - Vidyadip

Question

The compound Y Ba₂Cu₃O₇, which shows superconductivity, has copper in x oxidation state. Assume that the rare earth element yttrium is in its usual +3 oxidation state. Predict the value of x.

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Answer

1x (+3) + 2x (+ 2) + 3x + 7x (-2) = 0

3 + 4 + 3x - 14 = 0

3x = 7; $\text{x} = \frac{7}{3}$

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