Respuesta :

Answer:

1121.08 millilitres of 0.223 M [tex]KNO_{3}[/tex] solution contains 0.250 moles of [tex]KNO_{3}[/tex].

Explanation:

The formula for molarity of a solution:

[tex]Molarity=\frac{n}{V}\\ where,n=number\: of\:moles\\V=volume\:of\:solution\:in\:L[/tex]

Molarity = 0.223 M

n = 0.250 moles

[tex]V=\frac{n}{Molarity}=\frac{0.250}{0.223}=1.12108L=1121.08mL[/tex]

Therefore, 1121.08 millilitres of 0.223 M  [tex]KNO_{3}[/tex] solution contains 0.250 moles of  [tex]KNO_{3}[/tex].