Conversion of grams to moles

A mass of 6 g of Carbon contains

• 1 mole of C
• 2 moles of C
• 0.5 moles of C
• 72 moles of C

How many moles are in 22 g of argon? 

• 880 moles
• 0.55 moles
• 1.81 moles
• 5 moles

How many moles are present in a 32.5 sample of aluminum chloride?

• 720 moles
• 1.2 moles
• 0.2 moles
• 0.5 moles

36.0 g of Be contains how many moles?

• 0.25 mol
• 4.0 mol
• 45 mol
• 320 mol

How many moles are in 15 grams of lithium?

• 0.5 moles
• 104.1 moles
• 2.2 moles
• 50 moles

How many moles are in 9.8 grams of calcium? 

• 0.2 moles
• 4.1 moles
• 1 mole
• 392 moles

How many moles are in 2.3 grams of phosphorus?

• 0.07 moles
• 71.3 moles
• 13.5 moles
• 20 moles

How many moles are 98.3 grams of aluminum hydroxide, Al(OH)₃?

• 1.26 moles
• 0.8 moles
• 7,673.4 moles
• 150 moles

How many moles are in 68 grams of copper (II) hydroxide, Cu(OH)₂?

• 1.4 moles
• 0.7 moles
• 6,630 moles
• 50 moles

What is the mass of one mole of (NH₄)₂CO₃?

• 144g
• 138g
• 96g
• 74g