Question

Calculate the number of Aluminium atoms in 0.056g of Aluminium oxide

Answer 1

Answer:

no of moles=given mass /molecular mass

0.056/101(molecular mass of aluminium oxide)

=0.0005544554455g/mol

no of moles is also = given no of particles/avagadro no

0.0005544554455=gnop/6.022×10power 24

gnop=0.0005544554455×6.022×10power 23