7. Ethylene glycol is the active ingredient in most commercial automobile antifreeze. Why wouldn't sodium chloride be used in a similar way? a. Sodium chloride solute does not lower the freezing point of water. b. Sodium chloride does not dissolve in water. c. Sodium chloride lowers the freezing point of water but has other undesirable characteristics. d. Sodium chloride is a solid while ethylene glycol is a liquid. Explain your answer:   6. How would the freezing and boiling points of distilled water and seawater compare? a. Both the freezing and boiling points of seawater would be lower. b. Both the freezing and boiling points of seawater would be higher. c. The seawater freezing point would be lower and the seawater boiling point higher. d. The seawater freezing point would be higher and the seawater boiling point lower. Explain your answer:   5. Suppose you want to purchase a syrup containing water and sugar and you have two brands from which to choose. If you want to purchase on the basis of the highest sugar content, which should you buy? a. The syrup with the highest freezing point. b. The syrup with the highest boiling point. Explain your answer: 1. Suppose that in Part A of the experiment you confused the dialysis tube samples and put them into the wrong beakers. What results would have been observed? a. Both samples would increase in mass. b. Both samples would decrease in mass. c. One sample would increase and the other would decrease in mass. d. Both samples would remain essentially constant in mass. Explain your answer:

Question

7. Ethylene glycol is the active ingredient in most commercial automobile antifreeze. Why wouldn't sodium chloride be used in a similar way?

a. Sodium chloride solute does not lower the freezing point of water.
b. Sodium chloride does not dissolve in water.
c. Sodium chloride lowers the freezing point of water but has other undesirable characteristics.
d. Sodium chloride is a solid while ethylene glycol is a liquid.

Explain your answer:

 

6. How would the freezing and boiling points of distilled water and seawater compare?

a. Both the freezing and boiling points of seawater would be lower.
b. Both the freezing and boiling points of seawater would be higher.
c. The seawater freezing point would be lower and the seawater boiling point higher.
d. The seawater freezing point would be higher and the seawater boiling point lower.

Explain your answer:

 

5. Suppose you want to purchase a syrup containing water and sugar and you have two brands from which to choose. If you want to purchase on the basis of the highest sugar content, which should you buy?

a. The syrup with the highest freezing point.
b. The syrup with the highest boiling point.

Explain your answer:

1. Suppose that in Part A of the experiment you confused the dialysis tube samples and put them into the wrong beakers. What results would have been observed?

a. Both samples would increase in mass.
b. Both samples would decrease in mass.
c. One sample would increase and the other would decrease in mass.
d. Both samples would remain essentially constant in mass.

Explain your answer:

 

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