Answer to Question #50361 in Other Chemistry for Meagan
How many cm3 of oxygen would be required to react completely with 432 cm3 of hydrogen gas according to the reaction below?
2H2(g) + O2(g) ---> 2H2O(g)
Forgasses we don`t have to transform volumes into moles for calculations. That`swhy according to the equation of chemical reaction the volume of hydrogen is twice the volume of oxygen. V(H2)= 2 ∙ V(O2) V(O2)= V(H2)/2 V(O2)= 432 cm3/2 V(O2)= 216 cm3 Answer: V(O2)= 216 cm3