Which reactant in each of the following pairs is more nucleophilic? Explain. a. -NH2 or NH3b. H20 or CH3CO2-c. BF3 or F-d. (CH3)3P or (CH3)3Ne. I- or Cl-f. -C triple bonded to N or -OCH3

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.

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned