What is the order of ionic mobility in an aqu | vedclass

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(B) In an aqueous solution,the ionic mobility depends on the size of the hydrated ion. Smaller ions have a higher charge density,leading to greater hy

Vedclass · Accepted Answer

$Cs^{+} > Rb^{+} > K^{+} > Na^{+}$

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(B) In an aqueous solution,the ionic mobility depends on the size of the hydrated ion. Smaller ions have a higher charge density,leading to greater hydration (more water molecules attached to them). Consequently,the hydrated size follows the order: $Na^{+} > K^{+} > Rb^{+} > Cs^{+}$. Since larger hydrated ions move more slowly through the solvent,the ionic mobility follows the inverse order: $Cs^{+} > Rb^{+} > K^{+} > Na^{+}$.

What is the order of ionic mobility in an aqueous solution?

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