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van't Hoff factors of equimolal solutions of sodium chloride, barium chloride and glucose in water are
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$2,3,1$ respectively
$\mathrm{NaCl}(a q) \longrightarrow \mathrm{Na}^{+}(a q)+\mathrm{Cl}^{-}(a q)$
van't Hoff factor, $i=2$
$\mathrm{BaCl}_{2}(a q) \longrightarrow \mathrm{Ba}^{2+}(a q)+2 \mathrm{Cl}^{-}(a q), i=3$
Glucose does not undergo dissociation or association hence, $i=1$
van't Hoff factor, $i=2$
$\mathrm{BaCl}_{2}(a q) \longrightarrow \mathrm{Ba}^{2+}(a q)+2 \mathrm{Cl}^{-}(a q), i=3$
Glucose does not undergo dissociation or association hence, $i=1$
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