Question

Number of atoms in 9.2g of Na

Answer 1

Answer:

Explanation:

Molar Mass of Na = 23g/mol

9.2 g => 9.2/23

= > 0.4 mol Na

1 mol of sodium has 6.022×10^23atoms

0.4 mol of sodium = 0.4×6.022×10^23 atoms

=2.4×10^23 atoms

Answer 2

Answer:

2.4×10^23

Explanation:

MOLAR MASS OF SODIUM (NA)=23g/mol

9.2g=9.2/23

=0.4 mol.Na

1 Mol of Sodium (Na) is = 6.022×10^23 atoms

0.4 mol of Sodium is = 0.4×6.022×10^23 atoms

=2.4×10^23 atoms

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