Common questions

What are the factors affecting ionic mobility?

What are the factors affecting ionic mobility?

The mobility of ion is affected by the following factors: 1) viscosity of solution, the greater it is, the smaller will be the mobility of ion, 2) hydration of ion – the greater is hydration, the smaller becomes mobility, because the ion has to carry molecules of water with it when it is moving.

Which one has the highest mobility in aqueous solution?

Through Ba2+ is the heaviest ion but it is least hydrated. As a result, its size becomes lesser than any other hydrated alkaline earth metal cation and hence has the highest ionic mobility.

What is ionic mobility in aqueous solution?

Smaller the size of cation, higher is its hydration energy and lesser is its ionic mobility. Hence the correct order is Li+

What determines ion mobility?

Ion mobility refers to the differential speeds at which ions migrate through a gas under the influence of an electric field. In addition to the effect of the ion’s mass and charge, its mobility is also influenced by shape making it possible, in some cases, to separate isomers.

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What is the difference between ionic mobility vs ionic velocity?

The key difference between ionic mobility and ionic velocity is that ionic mobility defines the ability of ions to move through a medium whereas ionic velocity defines how fast the ions move through the medium. Therefore, the velocity of this movement is different from one ion to another.

Which of the following has highest ionic mobility?

Which of the following alkaline earth metal ions has the highest ionic mobility in aqueous solution? Because it is least hydrated so hydrated Ba2+ ion is smaller and has highest ionic mobility.

Which ion has highest ionic mobility in aqueous solution?

Since Ba2+ is the heaviest ion it is least hydrated. As a result, its size of hydrated ion becomes lesser than any other hydrated alkaline earth metal cation and hence has the highest ionic mobility.

Which element has highest ionic mobility?

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How does ionic mobility compare?

A. greater is the degree of hydration, lesser is the mobility in aqueous medium.

  • B. larger the size of cation, greater is the mobility in aqueous medium.
  • C. larger the size of cation, lesser is the mobility in aqueous medium.
  • D. lesser the degree of hydration, lesser is the mobility of ions in aqueous medium.
  • Why Cs+ ion has greater mobility than Li+ ion in aqueous state?

    Smaller the ion, greater is the degree of hydration and hence lesser is the ionic mobility. Since Li+ ion has the maximum degree of hydration so it has lowest ionic mobility. Since the degree of hydration decreases from Li+ to Cs+, therefore, ionic conductance increases from Li+ to Cs+.

    How ionic mobility is different from ionic speed?

    Ions are charged particles. The key difference between ionic mobility and ionic velocity is that ionic mobility defines the ability of ions to move through a medium whereas ionic velocity defines how fast the ions move through the medium.

    Which of the following ion in aqueous medium have highest ionic mobility?

    Li+ is having largest hydrated ionic size while Rb+ is having smallest. Smaller the size, greater the mobility.

    Why NA has higher ionic mobility than mg in aqueous state?

    The hydration enthalpy of Na is greater than that of Mg, hence in aqueous state, Mg has higher ionic mobility than Na. Actually, more hydration enthalpy means more degree of hydration i.e., more water molecules form bonds with the ion in hydrated form.

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    Which cations have a larger ionic size than magnesium and sodium?

    Aluminium cations have a larger ionic size than magnesium and sodium cations. Why? – Quora Aluminium cations have a larger ionic size than magnesium and sodium cations. Why?

    Why are the valence electrons in magnesium more stable than sodium?

    The valence electrons in magnesium are more stable than sodium mainly because magnesium has one more proton in the nucleus than sodium does. So even though the valence electrons of magnesium are in the same type of orbital (3s) as sodium, they are more attracted to the more positive nucleus and therefore are harder to remove.

    Why does ionic conductance increase from Li+ to CS+?

    Smaller the ion, greater is the degree of hydration and hence lesser is the ionic mobility. Since Li + ion has the maximum degree of hydration so it has lowest ionic mobility. Since the degree of hydration decreases from Li + to Cs +, therefore, ionic conductance increases from Li + to Cs +.