Mole

We have 14 ready-to-use problem sets on the topic of Particles, Moles, and Grams.

These problem sets focus on the use of Avogadro's number and molar mass values to convert between the number of particles in a sample, the moles in a sample, and the mass of the sample. Percent composition calculations, empirical formula determinations, and average atomic mass calculations are also included in this set of problems.

Problem Sets

Set PMG1: Average Atomic Mass
6 Problems - Medium Difficulty

Calculate the average atomic mass of an element from the percent composition of its various isotopes and make meaning of the results. 

Set PMG2: Atomic Mass Units
7 Problems - Medium Difficulty

Use atomic mass values to relate the number of atoms to the mass of a sample in atomic mass units.

Set PMG3: Molar Mass 1
5 Problems - Very Easy Difficulty

Determine the molar mass of a compound when given its formula.

Set PMG4: Molar Mass 2
4 Problems - Easy Difficulty

Take a field trip to Planet Exwizee (where the Periodic Table is different and Google doesn’t exist) and determine the molar mass of a variety of compounds. 

Set PMG5: Avogadro's Number
6 Problems - Very Easy Difficulty

Use Avogadro’s number to convert between the number of atoms of an element and the number of moles. 

Set PMG6: Particles-Moles-Grams 1
5 Problems - Very Easy Difficulty

Perform 1- and 2-step conversions between the number of atoms in an elemental sample, the moles of the sample, and the mass of the sample.

Set PMG7: Particles-Moles-Grams 2
6 Problems - Easy Difficulty

Perform 1- and 2-step conversions between the number of molecules in a sample, the moles of the sample, and the mass of the sample.

Set PMG8: Particles-Moles-Grams 3
6 Problems - Medium Difficulty

Perform 1- and 2-step conversions between the number of molecules in a sample, the moles of the sample, and the mass of the sample.

Set PMG9: Particles-Moles-Grams 4
5 Problems - Hard Difficulty

Perform 1-, 2-, and 3-step conversions between the number of atoms of an element in a molecular sample, the moles of the sample, and the mass of the sample. 

Set PMG10: Calculating Percent Composition from a Formula 1
5 Problems - Medium Difficulty

Use the formula of a compound and molar mass values to determine the percent composition of its various elements.

Set PMG11: Calculating Percent Composition from a Formula 2
4 Problems - Medium Difficulty

Use the formula of a compound and molar mass values to determine the percent composition of its various elements … on Planet Exwizee.  

Set PMG12: Empirical and Molecular Formulas
7 Problems - Medium Difficulty

Relate the empirical formula to the molecular formula and the molar mass. 

Set PMG13: Determining Formula from Percent Composition 1
4 Problems - Medium Difficulty

Determine the empirical formula for a compound when given the percent composition of the element in the compound.  

Set PMG14: Determining Formula from Percent Composition 2
4 Problems - Medium Difficulty

Determine the empirical formula for a compound when given the percent composition of the element in the compound … on Planet Exwizee.