Mole Concept Quiz

What is the number of atoms in 0.500 mole of Al?

• 3.01 x 10^23 Al atoms

• 1.5 x 10^23 Al atoms

• 6.02 x 10^23 Al atoms

• 500 Al atoms

What is the number of moles of S in 1.8 x 10^24 S atoms?

• 1.0 mole S atoms

• 2.5 mole S atoms

• 3.0 mole S atoms

• 1.1 x 10^48 mole S atoms

How many sodium atoms are in 0.120 mol Na?

• 500 Na atoms

• 7.22 x 10^22 Na atoms

• 1.2 x 10^22 Na atoms

• 3.6 x 10^23 Na atoms

How many moles of potassium are in 1.25 x 10^21 atoms K?

• 0.5 mole K atoms

• 2.08 x 10^-3 mole K atoms

• 1.25 mole K atoms

• 5.0 mole K atoms

What is the molar mass of magnesium nitrate, Mg(NO3)2?

• 120 g/mol

• 148 g/mol

• 175 g/mol

• 200 g/mol

What is the mass of 1.33 moles of titanium, Ti?

• 75.2 g Ti

• 63.7 g Ti

• 52.1 g Ti

• 80.5 g Ti

How many eggs are in 3.5 dozen eggs?

• 54 eggs

• 42 eggs

• 36 eggs

• 48 eggs

How big is a mole?

• All of the above

• Takes light 9500 years to travel

• Reaches from the Sun to Pluto

• Covers the entire Earth

What is Avogadro's number?

• 6.022 x 10^23 particles/mol

• 5.0 x 10^22 particles/mol

• 8.0 x 10^23 particles/mol

• 7.5 x 10^23 particles/mol

What is the equivalence statement for mole calculations?

• 1 mole = 6.022 x 10^23 atoms

• 1 mole = 12 atoms

• 1 mole = 1 atom

• 1 mole = 100 atoms