A 0.0020 M aqueous solution of an ionic compound Co ( NH 3 ) 5 ( NO 2 ) Cl freezes at − 0.0073 2 ∘ C . Number of moles of ions which 1 mole of ionic compound produces on being dissolved in water will be : ( k f = 1.8 6 ∘ C / m ) -

Question

A 0.0020 M aqueous solution of an ionic compound Co ( NH 3 ​ ) 5 ​ ( NO 2 ​ ) Cl freezes at − 0.0073 2 ∘ C . Number of moles of ions which 1 mole of ionic compound produces on being dissolved in water will be : ( k f ​ = 1.8 6 ∘ C / m ) -, 1, 2, 3, 4

MARKS App · Accepted Answer

Δ T f ​ = ik f ​ ⋅ m $ i i ​ = k f ​ ⋅ m Δ T f ​ ​ = 1.86 × 0.002 0.00732 ​ = 0.00372 0.00732 ​ = 2 ​ C o m p o u n d w i ll b e \left.\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\right] \mathrm{NO}_5 \mathrm{NO}_2\right] \mathrm{Cl} T o t a lp oss ib l e i o n s =2$

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