Which aqueous solution has a freezing point closer to its

Chapter 14, Problem 62P

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QUESTION:

Problem 62P

Which aqueous solution has a freezing point closer to its predicted value, 0.01 m NaBr or 0.01 m MgCl2? Explain.

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QUESTION:

Problem 62P

Which aqueous solution has a freezing point closer to its predicted value, 0.01 m NaBr or 0.01 m MgCl2? Explain.

ANSWER:

Solution 62P:

Here, we are going to explain which has a freezing point closer to its predicted value, 0.01 m NaBr or 0.01 m MgCl2.

Step 1:

The freezing point depression (Tf) is proportional to the concentration of solute particles.

(

where m is the molality of solute and Kb is molal freezing point depression constant.

Thus, we have to calculate the molality (m) o

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