Which of the following aqueous solution has minimum freezing point?

Question

Which of the following aqueous solution has minimum freezing point? (A) 0.01 M NaCl (B) 0.005 M NaCl (C) 0.1 M NaCl (D) 0.01 M Na2SO4

Tardigrade Admin · Accepted Answer

As we know, Δ Tf = K f ⋅ m ⋅ i T f propto i more are ions, more will be Δ T f and more is Δ T f , lesser is freezing point. The minimum freezing point means more is the number of ions a. 0.01 × 2=0.02 b. 0.005 × 1=0.005 c. 0.005 × 3=0.015 d. 0.005 × 2=0.01

Q. Which of the following aqueous solution has minimum freezing point?

$0.01 M N a Cl$

$0.005 M N a Cl$

$0.1 M N a Cl$

$0.01 M N a_{2} S O_{4}$

Q. Which of the following aqueous solution has minimum freezing point?

0.01MNaCl

0.005MNaCl

0.1MNaCl

0.01MNa2​SO4​

As we know, ΔTf=Kf​⋅m⋅i Tf​∝i more are ions, more will be ΔTf​ and more is ΔTf​, lesser is freezing point. The minimum freezing point means more is the number of ions a. 0.01×2=0.02 b. 0.005×1=0.005 c. 0.005×3=0.015 d. 0.005×2=0.01

$0.01 M N a Cl$

$0.005 M N a Cl$

$0.1 M N a Cl$

$0.01 M N a_{2} S O_{4}$