$5^{}$ A solution of $HN{O}_3$ is standardized by reaction with pure sodium carbonate.

$2H^{+}+N{a}_{2}C{O}_3$longrightarrow$2N{a}^{+}+H_{2}O+C{O}_2$

A volume of $23\mathrm{.}78+-0\mathrm{.}05mL$ of $HN{O}_3$ solution was required for complete reaction with $0\mathrm{.}9890+-0\mathrm{.}0008g$ of $N{a}_{2}C{O}_3,(FM(105\mathrm{.}988+-0\mathrm{.}001\frac{g}{m}ol).$ Find the molarity of the $HN{O}_3$ solution and its absolute uncertainty.

Note: Significant figures are graded for this problem. To avoid rounding errors, do not round your answers until the very end of your calculations.

$[HN{O}_3]=$

$M,+-$

M