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Ch.13 - Solutions
Chapter 13, Problem 96

Is the question asking for the calculation of the van’t Hoff factor (i) for KBr at a given concentration, based on the provided osmotic pressure, correct?

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1
Identify the formula for osmotic pressure: \( \Pi = iMRT \), where \( \Pi \) is the osmotic pressure, \( i \) is the van’t Hoff factor, \( M \) is the molarity, \( R \) is the ideal gas constant, and \( T \) is the temperature in Kelvin.
Rearrange the formula to solve for the van’t Hoff factor \( i \): \( i = \frac{\Pi}{MRT} \).
Ensure you have all the necessary values: osmotic pressure (\( \Pi \)), molarity (\( M \)), the ideal gas constant (\( R \)), and temperature (\( T \)) in Kelvin.
Substitute the known values into the rearranged formula to calculate \( i \).
Interpret the calculated van’t Hoff factor \( i \) to understand the degree of dissociation of KBr in the solution.