The aqueous solution of a substance A shows an acidic reaction. When 766 g of A are burned in oxygen 1.837 g of carbon dioxide and 0.376 g of water are generated.
a) Determine the empirical formula of A.

The 1H-NMR spectrum (in DMSO) shows two signals with the relation 1:2. The shifts of the peaks are 8.59 ppm (s) and 6.58 ppm (s). In the 13C-NMR spectrum two signals at 149.79 ppm (s) and 115.67 ppm (s) are observed.
b) Deduce the molecular formula of A. Account for your decision using the NMR signals. Sketch the structural formula and write down the name of the substance!

Question

The aqueous solution of a substance A shows an acidic reaction. When 766 g of A are burned in oxygen 1.837 g of carbon dioxide and 0.376 g of water are generated.
a)	Determine the empirical formula of A.

The 1H-NMR spectrum (in DMSO) shows two signals with the relation 1:2. The shifts of the peaks are 8.59 ppm (s) and 6.58 ppm (s). In the 13C-NMR spectrum two signals at 149.79 ppm (s) and 115.67 ppm (s) are observed.
b)	Deduce the molecular formula of A. Account for your decision using the NMR signals. Sketch the structural formula and write down the name of the substance!

aaronq · Answer

what have you tried?