II. Molar Conversions

A. Molar Mass Find the mass of one mole of the following atoms/compounds (molar mass) 1 mole of H2O = 1 mole of CO2 = 1 mole of H3PO4 =

B. Grams  Moles How many moles is 350 g of CO 1 mole CO =_________g

B. Grams  Moles What is the mass of 6.8 moles of MgCl2 1 mole MgCl2=__________g

C. Grams MolesParticles How many particles are there in 24 g of FeF3? (hint: write two unit conversions before solving) 1 mole of FeF3 = 1 mole =

C. Grams MolesParticles How many molecules are there in 200 g of CCl4? (hint: write two unit conversions before solving) 1 mole of CCl4 = _______ 1 mole =

C. Grams MolesParticles How many grams of H2 are in 9.4 x 1025 molecules of H2? (hint: write two unit conversions before solving) 1 mole of H2 = 1 mole =

0°C and 1 atm D. Gases at STP* STP = Standard Temperature and Pressure At STP, 1 mole of any ideal gas will occupy exactly 22.4 L 1 mole = 22.4 L

E. Moles  Liters (assume STP*) What is the volume of 0.05 mol of Ne? 1 mole =

E. Moles  Liters (assume STP*) How many moles are in 11.2 L of argon gas? 1 mole =

F. Find the Molar Mass A 4.8-mole sample of an unknown compound has a mass of 192 g. Find the molar mass of the compound. Units for molar mass = ___ /___

F. Find the Molar Mass A 12.5-L sample of an unknown at STP has a mass of 8.0 g. Find the molar mass of the compound. Units for molar mass = ___ /___ 1 mole =