The mole part 2 Quiz

What is the molar mass of a substance used for in calculations?

• To determine the substance's reactivity

• To calculate the number of moles from the mass of the substance and vice versa

• To identify the substance's physical state

• To measure the volume of the substance

What does the atomic mass on the Periodic Table represent?

• The mass of a molecule in grams

• The mass of a single atom in amu (atomic mass units)

• The total mass of atoms in a mole

• The mass of an electron in amu

According to the example provided, what is the atomic mass of a carbon atom?

• 12.01 grams

• 6.02 amu

• 12.01 amu

• 1 amu

According to the example provided, what is the molar mass of carbon?

• 12.01 kilograms

• 1.20 grams

• 12.01 grams

• 120.1 grams

What is the molar mass of Al₂S₃ when rounded to two decimal places?

• 150.17 g/mol

• 149.94 g/mol

• 151.17 g/mol

• 148.21 g/mol

What is the molar mass of Ba₃(PO₄)₂?

• 601.93 g/mol

• 500.00 g/mol

• 550.00 g/mol

• 650.00 g/mol

What is the mass of 1.33 moles of Ba₃(PO₄)₂?

• 800 g Ba₃(PO₄)₂

• 801 g Ba₃(PO₄)₂

• 802 g Ba₃(PO₄)₂

• 803 g Ba₃(PO₄)₂

How many moles are equal to 157.8g of CaCl2?

• 1.422 mol CaCl2

• 0.711 mol CaCl2

• 2.844 mol CaCl2

• 3.566 mol CaCl2