A complex represented by CoCl3 . xNH3 was dissolved in 1.0 kg water to make 0.1 m solution. When this was mixed with stoichiometrically required amount of solid AgNO3, 28.66 g of AgCl was obtained. Assume 100% ionization of complex occurred and the coordination number of Co (III) is six. Kf of water is 1.86 K kg mol-1 What is the value of Δ Tf of the solution upon adding the AgNO3 ? (Molecular weight of AgCl is 143.3 g mol-1)

Question

A complex represented by CoCl3 . xNH3 was dissolved in 1.0 kg water to make 0.1 m solution. When this was mixed with stoichiometrically required amount of solid AgNO3, 28.66 g of AgCl was obtained. Assume 100% ionization of complex occurred and the coordination number of Co (III) is six. Kf of water is 1.86 K kg mol-1 What is the value of Δ Tf of the solution upon adding the AgNO3 ? (Molecular weight of AgCl is 143.3 g mol-1) (A) 0.558° C (B) 0.186° C (C) 0.372° C (D) 0° C

Tardigrade Admin · Accepted Answer

Correct answer is (a) 0.558° C

$0.55 8^{\circ} C$

$0.18 6^{\circ} C$

$0.37 2^{\circ} C$

$0^{\circ} C$

Correct answer is (a) $0.55 8^{\circ} C$

0.558∘C

0.186∘C

0.372∘C

0∘C

Correct answer is (a) 0.558∘C

$0.55 8^{\circ} C$

$0.18 6^{\circ} C$

$0.37 2^{\circ} C$

$0^{\circ} C$

Correct answer is (a) $0.55 8^{\circ} C$