Answer : The number of moles of potassium chloride is, 1.99 moles.
Explanation : Given,
Mass of KCl = 148 g
Molar mass of KCl = 74.5 g/mol
Formula used :
[tex]\text{Moles of }KCl=\frac{\text{Mass of }KCl}{\text{Molar mass of }KCl}[/tex]
Now put all the given values in this formula, we get the moles of KCl.
[tex]\text{Moles of }KCl=\frac{148g}{74.5g/mol}=1.99mole[/tex]
Therefore, the number of moles of potassium chloride is, 1.99 moles.