Question 28 options : a) A solution formed by dissolving 0.75 mol of KCl in 1.00

ID: 854964 • Letter: Q

Question

Question 28 options:

a) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water.

b) A solution formed by dissolving 0.75 mol of glucose (C6H12O6) in 1.00 kg of water.

c) A solution formed by dissolving 0.75 mol of Ca(NO3)2 in 1.00 kg of water.

d) A solution formed by dissolving 0.75 mol of Na3PO4 in 1.00 kg of water.

e) All of the solutions described above have the same boiling point.

Which solution has the lowest boiling point?

Question 29 options:

a) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water.

b) A solution formed by dissolving 0.75 mol of glucose (C6H12O6) in 1.00 kg of water.

c) A solution formed by dissolving 0.75 mol of Ca(NO3)2 in 1.00 kg of water.

d) A solution formed by dissolving 0.75 mol of Na3PO4 in 1.00 kg of water.

e) All of the solutions described above have the same boiling point.

Which solution has the highest freezing point?

Question 30 options:

a) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water.

b) A solution formed by dissolving 0.25 mol of KCl in 1.00 kg of water.

c) A solution formed by dissolving 0.75 mol of KCl in 4.00 kg of water.

d) A solution formed by dissolving 0.25 mol of KCl in 0.50 kg of water.

e) All of the solutions described above have the same freezing point.

28: Na3PO4 breaks up into 3Na+ and PO4- so there are the most ions present. this means that it would have the lowest BP.

29: Na3PO4 breaks up into 3Na+ and PO4- so there are the most ions present. this means that it would have the highest freezing point.

30: a).75 moles in 1 kg of water would give the highest concentration or molarity, so A is the correct answer.

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