Question

Complete the second column of the table.Express your answer using two significant figures.

Answer 1

Avogadro's Law is

`(V_1)/(n_1)=(V_2)/(n_2)`

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.

`\begin{gathered} n_1=\frac{V_1\cdot n_2^{}}{V_2}=(51mL\cdot2.68*10^(-4)mol)/(13mL) \\ n_1=11*10^(-4)mol \\ n_1=0.0011mol \end{gathered}`

Therefore, the number of moles of n1 is 0.0011 moles.