Mole Calculations Quiz

What tools are essential for performing mole calculations?

• A calculator and a periodic table

• A ruler and a periodic table

• A calculator and a ruler

• A periodic table and a compass

How many grams of sodium are in 2.25 moles of sodium?

• 51.7 grams

• 60.0 grams

• 22.99 grams

• 45.0 grams

What is the molar mass of water (H2O)?

• 1.01 g/mol

• 18.02 g/mol

• 22.99 g/mol

• 16.00 g/mol

How many moles are in 355 grams of water?

• 20.0 moles

• 17.5 moles

• 18.02 moles

• 19.7 moles

What is Avogadro's number?

• 6.02 x 10^23

• 1.01 x 10^23

• 3.14 x 10^23

• 9.81 x 10^23

How many molecules are in 0.315 moles of carbon monoxide?

• 2.23 x 10^21 molecules

• 1.90 x 10^21 molecules

• 1.00 x 10^21 molecules

• 3.00 x 10^21 molecules

How many moles of gold are in 1.34 x 10^24 atoms of gold?

• 1.34 moles

• 2.23 moles

• 1.00 moles

• 3.00 moles

What is the molar mass of NH3?

• 16.00 g/mol

• 22.99 g/mol

• 18.02 g/mol

• 17.04 g/mol

How many molecules of NH3 are in 5.65 x 10^2 grams of NH3?

• 2.0 x 10^25 molecules

• 1.0 x 10^25 molecules

• 3.0 x 10^25 molecules

• 4.0 x 10^25 molecules

What is the mass of 1.75 x 10^22 molecules of methane?

• 1.00 grams

• 0.300 grams

• 0.467 grams

• 0.500 grams