Chemistry

Problem

One needs some experimental data to determine

\Lambda^\circ_{\text{H}_2\text{C}_2\text{O}_4}

. Which value is also needed in addition of

\Lambda^\circ_{\text{HNO}_3}

and

\Lambda^\circ_{\text{K}_2\text{C}_2\text{O}_4}

? a.

\Lambda^\circ_{\text{NaCl}}

\Lambda^\circ_{\text{KNO}_3}

\Lambda^\circ_{\text{KCl}}

\Lambda^\circ_{\text{Na}_2\text{C}_2\text{O}_4}