IGCSE Chemistry - Mole

What is the mass of one mole of silver?

• 32.06 g

• 107.87 g

• 14.01 g

• 47 g

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

• 2879 moles

• 8.291 moles

• 0.8291 moles

• 0.0829 moles

How many moles of sodium chloride are in a 321.8 g sample?

• 18810 moles

• 3.315 x 10²⁴ moles

• 5.507 moles

• 4.767 moles

If an atom of Fluorine has an atomic mass of 19 amu, it has a Molar mass of ____

• 19 lbs.
• 19 kg
• How am I supposed to know?
• 19 g/mol

How many moles are in 3.01 x 10²² atoms of magnesium?

• 0.05 moles
• 1.81 x 10⁴⁶ moles
• 5.00 x 10²¹ moles
• 5 moles

What are the units for molar mass?

• grams
• amu
• grams/mole
• liters

Which conversion factor should be used for the following question " How many molecules are there in 4.00 moles of glucose, C₆H₁₂O₆? 

• 1 mole = 78.12 g
• 1 mole = 22.4 L 
• 1 mol = 6.02x 10²³ particles 
• more than one

Which conversion factor should be used to solve the following, "How many moles in 28 grams of CO₂?"

• 1 mol = 22.4 L 
• 1 mol = 44.01 g
• 1 mol = 6.02x10²³ atoms
• more than one

What is the molar mass of AuCl₃?

• 96 g

• 130 g

• 232.5 g

• 303.3 g

Which has more atoms, 12.0 mol of C or 12.0 mol of Ca?

• 12.0 mol C
• 12.0 mol Ca
• They are equal