Respuesta :
Answer: The mass of chlorine atom required to combine is 35.5 grams.
Explanation:
To calculate the number of moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex] .....(1)
- For sodium:
Given mass of sodium = 23 g
Molar mass of sodium = 23 g/mol
Putting values in equation 1, we get:
[tex]\text{Moles of sodium}=\frac{23g}{23g/mol}=1mol[/tex]
According to mole concept:
1 mole of an atom contains [tex]6.022\times 10^{23}[/tex] number of particles
So, 1 mole of sodium will contain = [tex](1\times 6.022\times 10^{23})=6.022\times 10^{23}[/tex] number of atoms
Number of atoms of chlorine = Number of atoms of sodium = [tex]6.022\times 10^{23}[/tex] = 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:
[tex]1mol=\frac{\text{Mass of chlorine}}{35.5g/mol}\\\\\text{Mass of chlorine}=(1mol\times 35.5g/mol)=35.5g[/tex]
Hence, the mass of chlorine atom required to combine is 35.5 grams.
