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Answer to Question #50361 in Other Chemistry for Meagan

Question #50361
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)
Expert's answer
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

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