What is the predicted melting point if 1.2 g of salt is added to 10 mL of water? Justify your answer.

Class 12th Chemistry, Question -What is the predicted melting point if 1.2 g of salt is added to 10 mL of water? Justify your answer.

By
Komal Kohli
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Question 31:What is the predicted melting point if 1.2 g of salt is added to 10 mL of water? Justify your answer.

The correct answer is -depression in freezing point is directly proportional to molality (mass of solute when
the amount of solvent remains same)
0.3 g depression is 1.9 oC
0.6 g depression is 3.8 oC
1.2 g depression will be 3.8 x2 = 7.6 oC

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