Clinical osmometers use NaCl as a reference solution because:
A) 1 g molecular weight of NaCl will lower the freezing point 1.86℃
B) NaCl is readily frozen and vaporized
C) NaCl is partially ionized similar to the composition of urine
D) 1 g equivalent weight of NaCl will lower the freezing point 1.86℃

Question

Quizplus · Accepted Answer

NaCl is chosen as a reference solution in clinical osmometers because it is partially ionized, which makes it similar to the composition of biological fluids like urine. This similarity helps in accurately measuring the osmolality of these fluids.

Clinical Osmometers Use NaCl as a Reference Solution Because