Matura 2026. ljeto

U tablici su navedeni maseni udjeli atoma ugljika, vodika i kisika u organskome spoju relativne molekulske mase 90,06. $$\begin{array}{|c|c|c|c|} \hline \text{atom} & \text{ugljik} & \text{vodik} & \text{kisik} \\ \hline w\ /\ \% & 40{,}0 & 6{,}70 & 53{,}3 \\ \hline \end{array}$$$\begin{array}{|c|c|c|c|} \hline \text{atom} & \text{ugljik} & \text{vodik} & \text{kisik} \\ \hline w\ /\ \% & 40{,}0 & 6{,}70 & 53{,}3 \\ \hline \end{array}$ Koja je formula empirijska formula organskoga spoja?