The following solutions are at the same temperature (complete dissociation assumed): S1 $0.12 M$ glucose, S2 $0.060 M$ $NaCl$ , S3 $0.040 M$ $Na X_{2} SO X_{4}$ , S4 $0.050 M$ $K X_{3} PO X_{4}$ . Which statements are correct?

ANo net osmosis occurs between S2 and S3 across a semipermeable membrane.
BSolvent flows from S4 to S1.
CS4 is hypertonic with respect to S1.
DS1 and S3 are isotonic.

Answer: A, C, D

Particle concentrations: S1 0.12 M; S2

2 \times 0.060 = 0.12

M; S3

3 \times 0.040 = 0.12

M; S4

4 \times 0.050 = 0.20

M. S1, S2 and S3 are mutually isotonic, so the statements on S1/S3 and on S2/S3 hold. S4 has the higher osmotic pressure, so it is hypertonic to S1 and the solvent flows from S1 into S4, not the reverse.

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The following solutions are at the same temperature (complete dissociation assumed): S1 0.12 M glucose, S2 0.060 M NaCl, S3 0.040 M NaX2​SOX4​, S4 0.050 M KX3​POX4​. Which statements are correct?

Answer: A, C, D

More questions on Osmotic pressure

The following solutions are at the same temperature (complete dissociation assumed): S1 $0.12 M$ glucose, S2 $0.060 M$ $NaCl$ , S3 $0.040 M$ $Na X_{2} SO X_{4}$ , S4 $0.050 M$ $K X_{3} PO X_{4}$ . Which statements are correct?