Avogadro's Law is
[tex]\frac{V_1}{n_1}=\frac{V_2}{n_2}[/tex]
In the second column of the table, we have to find n1 when V1 = 51 mL, V2 = 13 mL, and n2 = 2.68x10^-4 mol. Solve the equation for n1.
[tex]\begin{gathered} n_1=\frac{V_1\cdot n_2^{}}{V_2}=\frac{51mL\cdot2.68\times10^{-4}mol}{13mL} \\ n_1=11\times10^{-4}mol \\ n_1=0.0011mol \end{gathered}[/tex]
Therefore, the number of moles of n1 is 0.0011 moles.
