Compound Y (Mr=74.0M_{\text{r}} = 74.0Mr=74.0) contains carbon, hydrogen and oxygen only. A 5.50×10−4 mol5.50 \times 10^{-4} \text{ mol}5.50×10−4 mol sample of Y burns completely in air to form 1.65×10−3 mol1.65 \times 10^{-3} \text{ mol}1.65×10−3 mol of water and 1.65×10−3 mol1.65 \times 10^{-3} \text{ mol}1.65×10−3 mol of carbon dioxide. Deduce the formula of Y. Show your working.
