Question 1

Which property of water makes it an excellent solvent for ionic compounds such as NaCl?

Accepted Answer

Its polarity and ability to form hydrogen bonds

Question 2

A solution is prepared by dissolving 10 g of NaCl in 100 g of water. Which component is the solvent?

Accepted Answer

Water

Question 3

Which of the following best describes an electrolyte?

Accepted Answer

A substance that forms ions in solution and conducts electricity

Question 4

Which of the following is an example of a solid solution?

Accepted Answer

Brass

Question 5

Why do ionic compounds like NaCl dissolve in water but not in hexane ($$\mathrm{C_6H_{14}}$$)?

Accepted Answer

Because water is polar and can stabilize ions, while hexane is nonpolar

Question 6

Which of the following is NOT a type of solution described in the study materials?

Accepted Answer

Solid in plasma

Question 7

A patient loses 1500 mL of water through urine, 300 mL through perspiration, 600 mL through breath, and 100 mL through feces in one day. What is the total water loss?

Accepted Answer

$$2500\ \mathrm{mL}$$

Question 8

Which of the following foods contains the highest percentage of water based on the study materials?

Accepted Answer

Lettuce

Question 9

Which of the following best explains why sugar ($$\mathrm{C$$_{12}$$H_{22}O$$_{11}}$) dissolves in water?

Accepted Answer

Sugar forms hydrogen bonds with water due to its polar -OH groups

Question 10

Which of the following is a nonelectrolyte when dissolved in water?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$} ($$glucose)

Question 11

What is the main reason that oil does not dissolve in water?

Accepted Answer

Oil is nonpolar and water is polar, so there are no favorable interactions

Question 12

Which of the following statements about solutes and solvents is correct?

Accepted Answer

The solvent is the component present in the greatest amount

Question 13

Which of the following best describes the process of dissolving $$\mathrm{$$CuSO_4$$} in $$water?

Accepted Answer

The $$\mathrm{$$CuSO_4$$}$$ dissociates into ions that are stabilized by water molecules

Question 14

Which of the following is an example of a gas in liquid solution?

Accepted Answer

Soda water

Question 15

What is the role of hydration in keeping $$\mathrm{Na^+}$$ and $$\mathrm{Cl^-}$$ ions in solution?

Accepted Answer

Hydration forms a layer of water molecules around the ions, stabilizing them

Question 16

Which of the following is a correct statement about nonelectrolytes?

Accepted Answer

They dissolve in water but do not produce ions

Question 17

A solution is made by mixing 1 L of ethanol with 2 L of water. Which is the solvent?

Accepted Answer

Water

Question 18

Which of the following best explains why $$\mathrm{$$KNO_3$$} is $$classified as an electrolyte?

Accepted Answer

It dissolves in water to form ions that conduct electricity

Question 19

Which of the following is an example of a liquid in solid solution?

Accepted Answer

Dental amalgam

Question 20

Which of the following best describes the interaction between water and ammonia ($$\mathrm{NH_3$}) in $$solution?

Accepted Answer

Water forms hydrogen bonds with ammonia, allowing it to dissolve

Solutions: Water as a Solvent and Types of Solutions

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