Question

what is mole concept???

Answer 1

The formula mass of a covalent compound is also called the molecular mass. A convenient amount unit for expressing very large numbers of atoms or molecules is the mole. Experimental measurements have determined the number of entities composing 1mole of substance to be 6.022 × 1023, a quantity called Avogadro's number.......!

Answer 2

here is ur answer:-

According to International Bureau of Measures and Weight mole is defined as substance containing consecutive entities of units such as atom , molecules etc.
One mole = 6•023×10^23 electrons

hope u got it.... and sorry for delay work