Question

if the mass of 0.25 mole of an element X is 2.25g, the mass of one atom ofXIs about

Answer 1

mass of 0.25 mole = 2.25g
mass of      1 mole = 2.25 * 4 = 9g
so, mass of one atom = 9 amu (atomic mass unit)





plz mark as brainliest