Question

calculate the number of atoms of a constituent elements in 53g of NA2CO3

Answer 1

convert 53g Na2CO3 to moles

[53/106] x 6.023 x 10^23 x 2] =no. Na atoms

[53/106] x 6.023 x 10^23 x 1] =no. C atoms

[53/106] x 6.023 x 10^23 x 3] =no. O atoms