If sodium sulphate is considered to be completely dissociated into cations and anions in aqueous solution, the change in freezing point of water ( T _ f ) , when 0.01 ~mol of sodium sulphate is dissolved in 1 ~kg of water, is ( K _ f =1.86

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If sodium sulphate is considered to be completely dissociated into cations and anions in aqueous solution, the change in freezing point of water ( T _ f ) , when 0.01 ~mol of sodium sulphate is dissolved in 1 ~kg of water, is ( K _ f =1.86 ~K ~kg ~mol ⁻¹ )

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Correct answer: B. 0.0558 ~K

Vant Hoff's factor (i) for Na ₂ SO ₄=3 aligned T _ f = & (i) k _ f m & =3 1.80 0.01 1 =0.0558 ~K aligned

If sodium sulphate is considered to be completely dissociated into cations and anions in aqueous solution, the change in freezing point of water ( T _ f ) , when 0.01 ~mol of sodium sulphate is dissolved in 1 ~kg of water, is ( K _ f =1.86 ~K ~kg ~mol ⁻¹ )

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