I need help with the answer to part f Table 1. The effect of increasing tonicity

Question

I need help with the answer to part f

Table 1. The effect of increasing tonicity on hemolysis of red blood cells. "x" indicates hemolysis (clearing) occurred d. What is the isotonic concentration for NaCl (the first molar concentration of the NaCl solution where hemolysis did not occur)? e. What is the isotonic concentration for glucose (the first molar concentration of the glucose solution where hemolysis did not occur)? f. Explain, in good physiological terms, why the molar concentrations In 3d and 3e are different. In your response, you should include a discussion of ionization.

Explanation / Answer

Hi,
The molar concentration of any solute depends on the ionization property of the molecules. In this case the NaCl when ionized splits into equal moles of Na+ and Cl-. That means if 1mole of NaCl is ionized we get 1mole of Na+ and 1mole of Cl-. So in total 2 moles of ionized molecules. But when glucose is hydrolysed it does not spilt into 2 ions. It remains as one single chemical. So 1mole of glucose after ionization remains as 1mole of glucose. That's why we need more of glucose as compared to the salt in the current problem.

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