Question

what is the relationship between mole and avagadros number​

Answer 1

Answer:

Avogadro's number is a very important relationship to remember: 1 mole = 6.022×1023 6.022 × 10 23 atoms, molecules, protons, etc. To convert from moles to atoms, multiply the molar amount by Avogadro's number. To convert from atoms to moles, divide the atom amount by Avogadro's number (or multiply by its reciprocal).

Explanation:

Example 1: An ornament of silver contains 20 g of silver. Calculate the moles of silver present (atomic mass of silver = 180 u)

Solution: Moles of silver,

n = mM

Mass of silver, m = 20 g,

Molar mass of silver,

M = 108 g

∴ n =  20108 = 0.185 mol.