Mole Concepts

What is the mass of one mole of aluminum?

• 27 g

• 13 g

• 54 g

• 14 g

What is the molar mass of CO₂?

• 12

• 16

• 32

• 44

Calculate the molar mass of Ba(C₂H₃O₂)₂

• 255.3 g/mol

• 237.3 g/mol

• 228.3 g/mol

• 196.3 g/mol

Calculate the molar mass for Al(OH)₃

• 78.0 g/mol

• 72 g/mol

• 28 g/mol

• 25 g/mol

Calculate the molar mass of NH₄NO₂

• 50 g/mol

• 60 g/mol

• 64 g/mol

• 78 g/mol

Molar mass is in units of ________.

• grams

• grams/mole

• mole

• moles/gram

What is the molar mass of NaOH?

• 40 g/mol

• 38.989 g/mol

• 23.998 g/mol

• 57.004 g/mol

What is the molar mass of Cl₂?

• 17 g/mol

• 35.5 g/mo;

• 71.0 g/mol

• 89 g/mol

What is the mass of one mole of silver?

• 32.06 g

• 107.87 g

• 14.01 g

• 22.99 g

48.86 g of cobalt is equal to how many moles of cobalt?

• 2879 moles

• 8.291 moles

• .8291 moles

• .829 moles