$C_{initial} \times V_{initial} = C_{final} \times V_{final}$

Question 1

Which of the following statements best describes a solution?

Accepted Answer

A solution is a homogeneous mixture where the solute is evenly dispersed throughout the solvent and the components do not react chemically.

Question 2

Which property is NOT characteristic of a solution?

Accepted Answer

The components separate upon standing.

Question 3

Air is an example of which type of solution?

Accepted Answer

A homogeneous mixture of gases.

Question 4

Which of the following best explains why ice floats on liquid water?

Accepted Answer

Ice has a lower density than liquid water because water molecules are farther apart in ice.

Question 5

Which statement correctly distinguishes a colloid from a suspension?

Accepted Answer

Colloids have particles between 1 and 1000 nanometers and do not separate over time.

Question 6

Which of the following is true about the solubility of solids and gases in water as temperature increases?

Accepted Answer

The solubility of solids increases, but the solubility of gases decreases with temperature.

Question 7

According to Henry’s Law, what happens to the solubility of a gas in a liquid when the pressure of the gas above the liquid increases?

Accepted Answer

The solubility of the gas increases.

Question 8

Which chemical equation correctly represents the dissociation of magnesium chloride in water?

Accepted Answer

$\mathrm{MgCl_2 (s) \rightarrow Mg^{2+} (aq) + 2Cl^{-} (aq)}$

Question 9

How many equivalents are present in one mole of $\mathrm{Ca^{2+}}$ ions?

Accepted Answer

2 equivalents

Question 10

Which concentration unit is defined as the number of moles of solute per liter of solution?

Accepted Answer

Molarity (M)

Question 11

A saline solution contains 0.90 g NaCl in 100 mL of solution. What is the percent mass/volume (% m/v) concentration?

Accepted Answer

0.90% (m/v)

Question 12

If you dilute 50 mL of a 2.0 M solution to a final volume of 200 mL, what is the final concentration?

Accepted Answer

0.50 M

Question 13

Which equation is used to calculate the final concentration after dilution?

Accepted Answer

$C_{initial} 	imes V_{initial} = C_{final} 	imes V_{final}$

Question 14

What is the direction of water movement during osmosis when a cell is placed in a hypotonic solution?

Accepted Answer

Water moves into the cell.

Question 15

Which of the following best describes an isotonic intravenous (IV) solution?

Accepted Answer

It has a solute concentration equal to that inside cells.

Question 16

Which process describes the movement of molecules from an area of higher concentration to an area of lower concentration to equalize concentrations?

Accepted Answer

Diffusion

Question 17

Which type of transport across a cell membrane requires energy in the form of ATP?

Accepted Answer

Active transport

Question 18

Which of the following is a real-world example of a suspension?

Accepted Answer

Blood, because blood cells settle out upon standing.

Question 19

A patient receives an IV solution that is hypertonic compared to their blood plasma. What is the likely effect on their cells?

Accepted Answer

Cells will shrivel due to water leaving the cells.

Solution Chemistry: Structure, Properties, and Applications

Study Guide - Practice Questions