Q.1 ) A sample of unknown organic compound contains C. H. O and N. Combustion of 2.18g sample in excess ess oxygen yields 3.94 g CO , and 1.89 g of H , 0. A separate experiment shows that 1.23 g unknown sample contains 0.235 g nitrogen . What is the empirical formula of the compound ?

Drive down any three characteristic of modern periodic table

Name the element in group 17, period 2. (periodic table)

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3