Question

explain with examples what is mean by a mole of substance​

Answer 1

Answer:

mole corresponds to the mass of a substance that contains 6.023 x 1023 particles of the substance. The mole is the SI unit for the amount of a substance. Its symbol is mol. By definition: 1 mol of carbon-12 has a mass of 12 grams and contains 6.022140857 x 1023 of carbon atoms (to 10 significant figures).

Answer 2

Answer:

One mole is defined as the amount of substance containing as many elementary entities (atoms, molecules,ions,electron and radicals etc) as there are atoms in 12 grams of carbon -12(6.023×1023) The mass of one mole substance equals to its relatives molecular expressed in gram