Explanation:
As it is known that molarity is the number of moles present in a liter of solution.
Mathematically, Molarity = [tex]\frac{no. of moles}{Volume in liter}[/tex]
As it is given that molarity is 0.10 M and volume is 10.0 ml. As 1 ml equals 0.001 L. Therefore, 10.0 ml will also be equal to 0.01 L.
Hence, putting these values into the above formula as follows.
Molarity = [tex]\frac{no. of moles}{Volume in liter}[/tex]
0.10 M = [tex]\frac{no. of moles}{0.01 L}[/tex]
no. of moles = 0.001 mol
As molar mass of KCN is equal to 65.12 g/mol. Therefore, calculate the mass of KCN as follows.
No. of moles = [tex]\frac{mass}{molar mass}[/tex]
0.001 mol = [tex]\frac{mass}{65.12 g/mol}[/tex]
mass = 0.06152 g
Thus, we can conclude that 0.06152 grams of KCN are in 10.0 ml of a 0.10 M solution.
