Question

46u of sodium contains
(a) 2 atoms of sodium
(b) 2 moles of sodium
(c) 1 mole of sodium
(d) 1 atom of sodium.

please help.....,.......​

Answer 1

Answer:

sodium atomic mass = 23

no of moles=46/23=2 moles

Answer 2

Explanation:

Formul of sodium ferrocyanide Na

4

[Fe(CN)

6

] of suggest that it has four sodium atoms.

Number of Na atoms

= Number of moles × number of atoms per molecule × Avogadro number

=2×4×6.023×10

23

=48×10

23