Deduce the structure of an unknown compound using the data below: molecular formula: c6h12o ir: 1705 cm-1 1h nmr: no absorptions greater than δ 3 ppm 13c nmr: δ 24.4, δ 26.4, δ 44.2, and δ 212.6 ppm. resonances at δ 44.2 and 212.6 have very low intensity.

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.