AP Chemistry Unit 8.10: Buffer Capacity

At high temperatures, $\mathrm{N}_{2}(g)$ and $\mathrm{O}_{2}(g)$ can react to produce nitrogen monoxide, NO(g), as represented by the equation above.

A second student makes a buffer by dissolving 0.100 mol of $\mathrm{NaNO}_{2}(s)$ in 100. mL of $1.00 M \mathrm{HNO}_{2}(a q)$. Which is more resistant to changes in pH when a strong acid or a strong base is added, the buffer made by the second student or the buffer made by the first student in part (c) ? Justify your answer.