Calculate the value of Avogadro number from the internuclear distance of adjacent ions in `NaCl, 0.282 nm` and the density of solid `NaCl` is `2.17xx10^(3)kg//m^(3)` . A unit cell contains `4 NaCl` formula units.

Explanation

To calculate Avogadro's number from the given data about NaCl, we can follow these steps:

### Step 1: Calculate the mass of 1 mole of NaCl
The molar mass of NaCl is given as 58.5 g/mol. We need to convert this to kilograms for consistency with the density units.

\[ \text{Mass of 1 mole of NaCl} = 58.5 \, \text{g/mol} = 58.5 \times 10^{-3} \, \text{kg/mol} \]
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