What is the volume (in dm$$^3$$) occupied by 75 g ethane at S.T.P. ?
"Mass can neither be created nor destroyed" is the statement of
What amount of oxygen is used at S.T.P. to obtain 9 g water from sufficient amount of hydrogen gas?
What is value of percent atom economy if formula weight of product is 46 u and sum of formula weight of all reactants is 92 u?