Question

Be sure to answer all parts. what volumes (in liters) of carbon monoxide and oxygen gas must react according to the equation 2co(g) + o2(g) → 2co2(g) to form 4.86 l of carbon dioxide? what is the volume of co?

Answer 1

The  volume of  oxygen  gas  and  carbon  monoxide  that   need to  react  is  calculated  as  follows

write  the  equation  for  reaction

2CO  +O2=  2CO2 
the   reacting  ratio  of CO:O2:CO2  is   2:1:2  from the  equation  above therefore

the  volume  of  O2  =   4.86l  x 1/2=2.43   L  of O2

the  volume  of  CO =  4.86  x2/2 =  4.86 L  of CO