Question

5 points about mole concept​

Answer 1

Answer:

• any substance constituting 6.022 x 10^23 is called one mole
• the number represented above is also called as Avogadro number
• the mass of any element which consists of one mole of its atom will be called the gram atomic mass of the element
• the mass of molecule which combines to make one mole of molecules will be called the gram molecular mass of the molecule.
• number of moles of any substance is the ratio of given mass and gram molecular mass

Answer 2

(1)...

it is the amount of substance contain many atoms , molecules, ions and other elementary particals.

(2)...

it is represented by a symbol mol.

(3)...

1 mol of substance is equal to= 6.02×10²³.

(4)...

the mass of one mole of substance depends one what that substance is, and equall to the formula mass of that substance in grams.

(5)...

we use mole when we don't count the amount of substance..