Question

The osmotic pressure of human blood is 7.65 atm. Find the molarity of glucose solution that can be injected into human blood. If adding some more amount of glucose into it disturbs its molarity and now it boils at 100.5°C, find its new molality at 27°C. What will be the effect on osmotic pressure of solution? K_b (for water) per 1000g = 0.50.

Answer 1

As we know for injecting glucose solution into human blood it is necessary that glucose solution has same osmotic pressure as of blood. So osmotic pressure of solution should be 7.65 atm. 

Now since elevation in boiling point has taken place with the addition of more glucose, it can be calculated as:

Molality of solution = 1 

The osmotic pressure of solution will increase because no of solute particles will increase