The number of sodium atoms in 2 moles of sodium ferrocyanide is:

Question

The number of sodium atoms in 2 moles of sodium ferrocyanide is: (A)  12× 1023  (B)  26× 1023  (C)  34× 1023  (D)  48× 1023

Tardigrade Admin · Accepted Answer

Formula Na 4[ Fe ( CN )6] sodium ferrocyanide suggests that it has four sodium atoms. Number of Na atoms = no. of moles × no. of atoms per molecule × Avogadro number =2 × 4 × 6: 023 × 1023 =48 × 1023

Q. The number of sodium atoms in $2$ moles of sodium ferrocyanide is:

$12 \times 10^{23}$

$26 \times 10^{23}$

$34 \times 10^{23}$

$48 \times 10^{23}$

Formula $N a_{4} [F e (CN)_{6}]$ sodium ferrocyanide suggests that it has four sodium atoms.
Number of $N a$ atoms $=$ no. of moles $\times$ no. of atoms per molecule $\times$ Avogadro number
$= 2 \times 4 \times 6 : 023 \times 1 0^{23}$
$= 48 \times 1 0^{23}$

Q. The number of sodium atoms in 2 moles of sodium ferrocyanide is:

12×1023

26×1023

34×1023

48×1023