The Mole Flashcards
What is 1 Mole equal to?
1M = 6.022 x10^23 atoms
What is 6.022 x10^23 known as?
Avogadro’s number
How many molecules are there in 1 mole of molecules?
6.022 x10^23 molecules
How many ions are there in 1 mole of ions?
6.022 x10^23 ions
How is the average mass of an atom expressed?
The mass is expressed as the atomic mass unit (amu)
What is amu?
2
It is a scale of relative masses of atoms
It is the weight of 1/12 the mass of a carbon atom C12
What is the mass of one mole of a substance called?
Molar mass
What is a dilute solution?
a solution that contains relatively little solute in a large quantity of solvent
What is the equation for molarity?
Molarity (M) = moles of solute/litres of solution
Define molarity.
Molarity is an expression of the concentration of a solution in moles of solute per litre of solution
What is a solute?
A solute is a solution component that is dissolved in a solvent
