Exploring Molar Mass and Average Atomic Mass

What particles are ignored when calculating the mass of an atom?

• Protons

• Neutrons

• Electrons

• All of the above

Which hydrogen isotope has one proton and one neutron?

• None of the above

• Hydrogen-3

• Hydrogen-2

• Hydrogen-1

What is the approximate abundance of Hydrogen-1 in nature?

• 100%

• 99.98%

• 75%

• 50%

How do you calculate the average atomic mass of an element?

• By averaging the masses of all isotopes

• By considering the mass and relative abundance of each isotope

• By taking the mass of the most abundant isotope

• By adding the masses of protons and electrons

What is the average atomic mass of carbon on the periodic table?

• 12.01 AMU

• 12.00 AMU

• 13.00 AMU

• 14.00 AMU

How many grams does one mole of carbon-12 weigh?

• 12 grams

• 1 gram

• 6 grams

• 24 grams

What unit is used to measure the mass of one atom?

• Moles

• Kilograms

• Grams

• Atomic Mass Units (AMU)

What is the molar mass of a substance?

• The mass of one atom in grams

• The mass of one mole of a substance in grams

• The mass of one molecule in AMU

• The mass of one mole of a substance in AMU

How do you find the molar mass of a compound?

• By averaging the masses of its constituent elements

• By adding the masses of its constituent elements

• By dividing the masses of its constituent elements

• By multiplying the masses of its constituent elements

What is the unit for molar mass?

• Grams per mole

• Moles per gram

• Kilograms per mole

• AMU per mole