moles

Question 1

what are moles

Answer 1

A mole is a way to count things like atoms or molecules.
1 mole = 6.022 × 10²³ particles.

Question 2

what is molar mass

Answer 2

Molar mass is how much 1 mole of a substance weighs, in grams.

For an element, it’s the number on the periodic table (e.g., carbon is 12 g/mol).

For a compound, add up the molar masses of its elements (e.g., water is 18 g/mol).

Question 3

what are molarities

Answer 3

Molarity is a way to measure the concentration of a solution. It tells you how many moles of a substance are in a liter of solution.