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Topic 7: Solutions


25.Effect of solutes and concentration on boiling and freezing points.
Determination which solute and which concentration has the least and greatest effect
1. Which solution will have the lowest freezing point?

1) 1 M NaCl 2) 1 M KCl 3) 1 M CaCl2 4) 1 M C6H12O6

2. Which of the following solutions will have the highest boiling point? 4) 0.2 M CaCl2
2) 0.2 M KCl
1) 0.1 M KCl
3) 0.1 M CaCl2


3. Which of the preparation of solutions will have the lowest freezing point?
1) 0.2 M KOH 2) 0.2 M NaOH 3) 0.2 M Mg(OH)2 4) 0.2 M CH2(OH)2
4. Which solution will boil at the highest temperature?
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1) 2 M Na2SO4 2) 1 M Na2SO4 3) 2 M NaNO3 4) 2 M NaNO3

5. Which solution will boil at the lowest temperature?
1) 0.1 M C6O12O6 2) 0.1 M LiBr 3) 0.2 M C6H12O6 4) 0.2 M LiBr

6. Which preparation will produce a solution with the lowest freezing point?

1) .1 mole of HCl in 1000 g of water 3) .2 mole of H2SO4 in 1000 g of water
4) .2 mole of H2SO4 in 2000 g of water
2) .1 mole of HCl in 2000 g of water

7. Which preparation will produce the greatest increase in the boiling point of water?
1) 0.3 mole of CaCl2 in 100 g of water 3) 0.3 mole of KCl in 100 g of water
2) 0.3 mole of CaCl2 in 1000 g of water 4) 0.3 mole of KCl in 1000 g of water?

8. Which of the following solutions, each containing a nonvolatile solute, will boil t the highest
temperature?
1) 1 mole of electrolyte dissolved in 1000 g of H2O
2) 2 moles of electrolyte dissolved in 1000 g of H2O
3) 1 mole of nonelectrolyte dissolved in 1000 g of H2O

4) 2 moles of nonelectrolyte dissolved in 1000 g of H2O

9. Which solute, when added to 1000 grams of water, will produce a solution with the highest boiling
point?
1) 29 g of NaCl 3) 31 g of C2H6O2
2) 58 g of NaCl 4) 62 g of C2H6O2
10. Which of the given solutes dissolved in 1000 g of H2O will produce a solution with the lowest freezing
temperature?
1) 10 g of Li2SO4 3) 10 g of Ag2SO4
2) 10 g of SrSO4 4) 10 g of BaSO4

11. Which solute preparations will produce a solution with the highest boiling point?
1) 55 g CaCl2 dissolved in 1000 g H2O 3) 21 g CaCl2 dissolved in 500 g of H2O
2) 55 g CaCl2 dissolved in 2000 g of H2O 4) 21 g CaCl2 dissolved in 200 g of H2O
12. Which of the following preparations will produce a solution with the highest freezing point?

1) 1 g NaOH in 10 g of water 3) 1 g HCl in 100 g of water
2) 2 g NaOH in 10 g of water 4) 2 g HCl in 100 g of water

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