Consider the two solutions: I: 0.5 M NaCl aqueous solution at 25° C ; NaCl is complete ionized II: 2.0 M C 6 H 5 COOH in benzene at 25° C , C 6 H 5 COOH dimerizes to the full extent Which of the following statement(s) is (are) correct?

Question

Consider the two solutions: I: 0.5 M NaCl aqueous solution at 25° C ; NaCl is complete ionized II: 2.0 M C 6 H 5 COOH in benzene at 25° C , C 6 H 5 COOH dimerizes to the full extent Which of the following statement(s) is (are) correct? (A) Both the solutions display equal osmotic pressure (B) Both have equal vapour pressure (C) Solution II is hypertonic (D) Solution II has greater depression in freezing point than solution I

Tardigrade Admin · Accepted Answer

NaCl: 0.5 M (i=2) ⇒ C text eff =0.5 × 2=1 M C 6 H 5 COOH: 2.0 M (i=(1/2)) ⇒ C text eff =2 × (1/2)=1 M a. π=C text eff R T ⇒ π is same as C text eff is same b. Since both the solutions have different solvents, vapor pressure will be different c. Solutions are isotonic d. Δ T f =i K f ⋅ m ⇒ Δ T f for solution II will be more as (K f ) text benzene >(K f ) text water

Q. Consider the two solutions: I: 0.5MNaCl aqueous solution at 25∘C;NaCl is complete ionized II: 2.0MC6​H5​COOH in benzene at 25∘C,C6​H5​COOH dimerizes to the full extent Which of the following statement(s) is (are) correct?

Both the solutions display equal osmotic pressure

Both have equal vapour pressure

Solution II is hypertonic

Solution II has greater depression in freezing point than solution I

Q. Consider the two solutions:
I: $0.5 MN a Cl$ aqueous solution at $2 5^{\circ} C; N a Cl$ is complete ionized
II: $2.0 M C_{6} H_{5} COO H$ in benzene at $2 5^{\circ} C, C_{6} H_{5} COO H$ dimerizes to the full extent
Which of the following statement(s) is (are) correct?