Question 1

Which of the following best explains why table salt (NaCl) dissolves readily in water?

Accepted Answer

Because water molecules interact with NaCl via ion-dipole interactions.

Question 2

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

Accepted Answer

Water

Question 3

Which of the following compounds would you expect to be a strong electrolyte when dissolved in water?

Accepted Answer

NaCl (sodium chloride)

Question 4

Which statement best describes the phrase 'like dissolves like'?

Accepted Answer

Solutes and solvents with similar polarities tend to form solutions.

Question 5

Methanol (CH\_3OH) dissolves in water primarily due to which type of intermolecular interaction?

Accepted Answer

Hydrogen bonding

Question 6

Which of the following will NOT conduct electricity when dissolved in water?

Accepted Answer

C\_6H\_12O\_6 (glucose)

Question 7

A student mixes hexane (C\_6H\_14) and water. What will happen?

Accepted Answer

Hexane will not dissolve in water because hexane is nonpolar and water is polar.

Question 8

Which of the following best describes a weak electrolyte?

Accepted Answer

A compound that partially dissociates into ions in water.

Question 9

Which of the following is an example of an ion-dipole interaction?

Accepted Answer

Na\^+ surrounded by water molecules

Question 10

Which of the following pairs will most likely form a solution?

Accepted Answer

Methanol and water

Question 11

When AgNO\_3 is dissolved in water, which ions are present in the solution?

Accepted Answer

Ag\^+ and NO\_3\^-

Question 12

Which of the following statements is TRUE regarding electrolytes?

Accepted Answer

Electrolytes conduct electricity due to the presence of mobile ions.

Question 13

Which of the following is a non-electrolyte?

Accepted Answer

C\_6H\_12O\_6 (glucose)

Question 14

Which of the following best describes the dissolution of CaCl\_2 in water?

Accepted Answer

CaCl\_2 dissociates into Ca\^2+ and 2Cl\^- ions due to ion-dipole interactions.

Question 15

Which of the following is most likely to dissolve in a nonpolar solvent like toluene?

Accepted Answer

Hexane

Question 16

Which of the following is NOT a property of solutions?

Accepted Answer

Solute particles are visible to the naked eye.

Question 17

Which of the following best describes the interaction between acetone molecules in pure acetone?

Accepted Answer

Dipole-dipole interactions

Question 18

A solution of NaCl in water is classified as which type of mixture?

Accepted Answer

Homogeneous mixture

Question 19

Which of the following is a correct representation of the dissociation of NaCl in water?

Accepted Answer

$$ \mathrm{NaCl} (s) \rightarrow \mathrm{Na}^+ (aq) + \mathrm{Cl}^- (aq) $$

Question 20

Which of the following best explains why glucose does not conduct electricity in water?

Accepted Answer

Glucose does not dissociate into ions in water.

Solutions and Solubility in General Chemistry

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