Top topic this week
Questions asked by users might not always be phrased in the clearest way.
a). Quinone, which is used in the dye industry and in photography, is an organic compound containing only carbon, hydrogen and oxygen. When 0.105 g of this compound was burned in oxygen, 0.257 g CO2 and 0.0350 g of H2O were obtained. Calculate the empirical formula of the compound.
b). Calculate the moles and mass of 6.8 L of nitrogen (N2) gas at STP.