Concentration Review

Vocabulary

100

6.02 x 10²³ particles

1 mole

200

A general term referring to the amount of solute in a solution. 

concentration

300

A qualitative term to describe a solution with a low amount of solute. 

dilute

400

This unit of concentration is used to quantify the number of particles per liter of solution

molarity

Equations

100

This concentration equation is typically used for liquids

percent by volume

200

The conversion from milliliters (mL) to liters (L)

1 L = 1000 mL

300

This equation is typically used for extremely low concentrations. 

ppm = g solute / g solution x 1,000,000

400

This equation is used to convert between mass and volume of a sample. 

D = m/V

Calculations

100

The concentration of 3.1 moles of solute in 0.5 L

6.2 M

200

The mass of solute in 250 g of a 15% by mass solution. 

37.5 g

300

The percent by volume concentration for 1.5 mL of solute mixed with 200 mL of water.

0.75%

400

The mass of solute needed to make 2 L of a 0.1 M solution, assuming that 1 mole of solute is equal to 75 g of solute. 

15 g

Safety

100

You need to wear these whenever you work with chemicals. 

Goggles

200

First thing you should do if a lab accident occurs. 

Tell your teacher

300

All chemicals should go here at the end of the experiment. 

Safety container

400

The amount of time you need to rinse chemicals out of your eyes. 

20 minutes