Question

Define Mole class.9​

Answer 1

Answer:

The mole is the unit of measurement for amount of substance in the International System of Units. A mole of a substance or a mole of particles is defined as containing exactly 6.02214076×10²³ particles, which may be atoms, molecules, ions, or electrons

Answer 2

• Mole is defined as the number of particles (like atoms, molecules, ions or radicals) which is exactly equal to the number of ¹²C-atoms present in 0.012 Kg of carbon.

• The term 'mole' means a definite number of particles of any substance like dozen, gross etc.

• Number of molecules in 1 mol = Number of atoms in 1 mol atom

                                                            = Number of ions in 1 mol ion

                                                            = Number of radicals in 1 mol of radical

                                                            = 6.022 × 10²³