Question

Air contains 20% O2 by volume. How many c. c. of air will be required for oxidation of 100 cc of acetylene (C2H2)?

Answer 1

write the combustion reaction and balance it.U probably knw vol. can act as stoichiometric coeff. so u just need to understand that as 20%O2 is present in 100%air by vol. it means for any vol. of O2 u require 5 times the vol. of air.Hope this helps u!!....follow me!!