moles

Question 1

one mole

Answer 1

one mole of any substance is the amount of substance that contains as many particles as exactly 12.0g of carbon-12

Question 2

molar mass

Answer 2

mass of one mole

Question 3

number of moles

Answer 3

one mole of a substance will contain N particles
2 moles of a substance will contain 2N particles
n moles of a substance will contain nN particles