Name________________________________________ Block: _____
PS5.2—Molar Mass & Conversions
Calculate the molar mass of the following compounds.
1.
Al2S3
4. Fe2O3
2. CH3OCH3
3. H2CrO4
5. HgO
Complete the following stoichiometry problems. Use the “mole map” given to you in class.
Mass – Moles Relationship
1. How many grams are there in 5.0 moles of CO2
2. How many moles are represented by 72.0g of P
Moles – Atoms/Particles/Molecules Relationship
1. How many atoms are in 2.5 x 102 mol SO3?
2. How many moles are in 5.05 x 1034 molecules of NH3?
(Continue to back)
Mass – Atoms/Particles/Molecules Relationship
1. How many particles are in 6.00g of Ca(OH)2?
2. How many grams are in 4.55 atoms of chlorine gas?