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<u>Answer:</u> The mass of chlorine atom required to combine is 35.5 grams.
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
.....(1)
- <u>For sodium:</u>
Given mass of sodium = 23 g
Molar mass of sodium = 23 g/mol
Putting values in equation 1, we get:
According to mole concept:
1 mole of an atom contains number of particles
So, 1 mole of sodium will contain = number of atoms
Number of atoms of chlorine = Number of atoms of sodium = = 1 mole
Now, calculating the mass of chlorine required by using equation 1:
Moles of chlorine = 1 mole
Molar mass of chlorine = 35.5 g/mol
Putting values in equation 1, we get:
Hence, the mass of chlorine atom required to combine is 35.5 grams.