We know that a chemist finds that 9.5 g of cesium chloride is produced and we must find the number of moles of cesium chloride
In order to find the number of moles we must use the next formula
[tex]\text{ number of moles}=\frac{mass}{molar\text{ mass}}[/tex]
In this case, the mass produced is given 9.5 g and the molar mass of the cesium chloride is 168.36 g/mol
Now, we must replace the values in the formula
[tex]\text{ number of moles}=\frac{9.5g}{168.36\frac{g}{mol}}[/tex]
Finally, we must simplify the equation
[tex]\text{ number of moles}=0,0564267046804467\text{mol}[/tex]
Giving the answer using the correct number of significant digits:
[tex]\text{ number of moles}=5.6\cdot10^{-2}\text{mol}[/tex]
ANSWER:
[tex]5.6\cdot10^{-2}[/tex]