Chapter 17, Problem 104AE

Interpretation Introduction

Interpretation: Themolality of 10.0 mL blood sample and osmotic pressure of creatinine needs to be determined. Its concentration is 1.0 mg/dL in blood with density as 1.025 g/mL at 25°C.

Concept Introduction: Colligative properties are the properties of solution which depend on the number of particles present in the solution. Some common examples of colligative properties are depression in freezing point, elevation in boiling point, osmotic pressure, lowering in vapor pressure etc. The number of particles is shown with the help of Van’t Hoff factor ‘i’.

The mathematical expression for osmotic pressure is as given below:

  $\begin{array}{l}\text{π = }i\times \text{C × R ×T}\\ \text{π = osmotic pressure}\\ \text{C = concentration}\\ \text{R= universal gas constant}\\ \text{T = temperature}\end{array}$