ANSWER
The number of moles of KNO3 is 0.539 moles
STEP-BY-STEP EXPLANATION:
Given information
[tex]\begin{gathered} \text{The number of molecules of KNO3 = 3.25 }\times10^{23}\text{ molecules} \\ \end{gathered}[/tex]
The next step is to find the number of moles by using the below number
[tex]Number\text{ of moles = }\frac{Number\text{ of molecules}}{\text{Avogadro's number}}[/tex]
Recall that, Avogadro's number is 6.022 x 10^23
[tex]\begin{gathered} \text{Number of moles = }\frac{3.25\text{ }\times10^{23}}{6.022\times10^{23}} \\ \text{Number of moles = }\frac{3.25}{6.022}\times10^{23\text{ - 23}} \\ \text{Number of moles = 0.539 }\times10^0 \\ \text{Number of moles = 0.539 moles} \end{gathered}[/tex]
Therefore, the number of moles of KNO3 is 0.539 moles
