Exploring Molar Mass Concepts

What is a mole in chemistry?

• A number representing a specific quantity of particles

• A unit of volume

• A unit of mass

• A type of chemical reaction

How many particles are there in one mole?

• 6.022 x 10^22

• 1.022 x 10^22

• 6.022 x 10^23

• 1.022 x 10^23

What is Avogadro's number used for?

• Converting pressure to volume

• Converting grams to liters

• Converting moles to atoms

• Converting temperature to energy

If you have 0.045 moles of gold, how many atoms of gold do you have?

• 2.7 x 10^22

• 2.7 x 10^23

• 2.7 x 10^21

• 2.7 x 10^24

What is the mass of one mole of a substance called?

• Formula mass

• Molar mass

• Molecular mass

• Atomic mass

What is the molar mass of potassium (K)?

• 29.10 g/mol

• 19.10 g/mol

• 49.10 g/mol

• 39.10 g/mol

How many moles are in 1 gram of potassium?

• 0.026 moles

• 0.036 moles

• 0.046 moles

• 0.056 moles

What is the relationship between moles and grams in terms of molar mass?

• Moles are converted to grams using molar mass

• Moles and grams are equal

• Grams are always larger than moles

• Moles are always larger than grams

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

• It represents the mass of one mole of the element in grams

• It represents the volume of one mole of the element

• It represents the number of neutrons

• It represents the number of protons

What should you expect when converting grams to moles?

• The number should get smaller

• The number should double

• The number should stay the same

• The number should get larger