Question

calculate vant hoff factor for baso4​

Answer 1

Answer:

if alpha is 1 (100%)

I = 2

I = 1+(n-1) alpha

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Answer 2

The Van't Hoff factor for BaSO₄ is equal to 2.

Step-by-step explanation:

→ The Van’t Hoff factor is the ratio of final number of moles of solute after dissociation or association to the initial number of moles of solute before dissociation or association of an electrolyte in a solution.

→ The strong electrolyte (α = 1) such as ionic salts have a Van’t Hoff factor greater than 1 and is equal to the number of ions formed in an aqueous solution when solutes dissociate.

• BaSO₄ being an ionic salt is a strong electrolyte and it dissociates 100% (α = 1) in an aqueous medium. The dissociation of BaSO₄ can be represented as follows:

                                   BaSO₄(aq.) → Ba²⁺(aq.) + SO₄²⁻(aq.)

 Number of Moles:     1 mole            1 mole        1 mole

• Number of moles before dissociation = 1 mole
• Number of moles after dissociation = 1 + 1 = 2 mole

∴ Van't Hoff factor of BaSO₄ = 1 + 1 = 2

Hence the Van't Hoff factor for BaSO₄ is equal to 2.

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