Unit Chemical Quantities: The Mole

How many moles are equal to 1.24x10^24 atoms of sulfur?

How many atoms are equal to 1.5 moles of helium?

How many moles are equal to 4.15x10^23 molecules of carbon monoxide?

How many molecules are equal to 2.25 moles of sulfur dioxide?

How many moles are equal to 2.4x10^23 formula units of sodium chloride?

How many formula units are equal to 1.8 moles of magnesium iodide?

How many moles are equal to 3.67x10^23 formula units of potassium permanganate?

How many molecules of carbon tetrachloride are equal to 0.25 moles?

How many moles are equal to 1.3x10^24 atoms of aluminum?

How many molecules are equal to 3.52 moles of oxygen difluoride?

Mole Conversions

Moles measure the amount of substance, related to the number of atoms or molecules using Avogadro's number (6.02 x 10^23).

Calculating Moles from Atoms

1.24 x 10^24 atoms of sulfur equals approximately 1.99 moles.
To calculate moles, divide the number of atoms by Avogadro's number.

Calculating Atoms from Moles

1.5 moles of helium correspond to 9.03 x 10^23 atoms.
Total atoms can be found by multiplying moles by Avogadro's number.

Mole Calculations with Molecules

4.15 x 10^23 molecules of carbon monoxide equal about 0.69 moles.
Use the formula: Moles = Number of molecules / Avogadro's number.

Molecules from Moles

2.25 moles of sulfur dioxide yield approximately 1.35 x 10^22 molecules.
Multiplication of moles by Avogadro's number helps find total molecules.

Sodium Chloride Units

2.4 x 10^23 formula units of sodium chloride equate to roughly 0.39 moles.

Magnesium Iodide Calculations

1.8 moles of magnesium iodide corresponds to about 1.08 x 10^24 formula units.

Potassium Permanganate Moles

Approximately 0.61 moles result from 3.67 x 10^23 formula units of potassium permanganate.

Carbon Tetrachloride Molecules

0.25 moles of carbon tetrachloride equal approximately 1.505 x 10^23 molecules.

Aluminum Atom Calculations

1.3 x 10^24 atoms of aluminum translate to about 2.16 moles.

Oxygen Difluoride Molecule Count

3.52 moles of oxygen difluoride yield around 2.12 x 10^24 molecules.

Test your understanding of chemical quantities with these flashcards focused on mole calculations. Each card presents a different scenario involving atoms and molecules, providing a hands-on way to learn about the mole concept. Perfect for students studying chemistry or preparing for exams.