d) Practice: If 15 mL. of 0.10 MN lize 15 mL of HNO,, what is the molarit mulari
ID: 573034 • Letter: D
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d) Practice: If 15 mL. of 0.10 MN lize 15 mL of HNO,, what is the molarit mularityo Sotus it e) Practice: Ir 15 ml, or 0.10 M NaOH neutralize 25 ml, of HCI, what is the molarty of the HC?1 rn 25m l Part 6-COLLIGATIVE PROPERTIES (Practice for homework) 1 . Look at the results in the data table below and answer question #2 below: 100 mL of water 100 ml, water +0.1 mol NaCI 100 mL water+O.1 mol CaCl 8 min 160 min 6 min Time required to Boil Time required to Freeze 120 min 140 min 2. Which solution will have the highest boiling point and highest freezing point? Explain why?Explanation / Answer
Part 6. 2. Adding of impurity increases the boiling point and takes more time to boil. Here for third solution takes more time to boil and impurity (CaCl2) is also more hence maximum boiling point. While addition of impurity lowers the freezing point.
Third one has low freezing point due to impurity. Hence first one, pure water has more freezing point(0°C).
Hint: a/c to colligative properties
Boiling point is directly proportional to vanthoff factor (i) while freezing point is inversely proportional.
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