Question

According to this balanced chemical equation,

what volume of C2H2 is required to form 40.0L

of CO2?


2C2H2(g) + 502(g) → 2H2O(g) + 4CO2(g)


A. 20.0L

B. 44.8L

C. 80.0L

D. 100 L

Answer 1

Step-by-step explanation:

can someone help me out here i can’t see the answer

Answer 2

Answer: A. 20.0L

Step-by-step explanation:

According to avogadro's law, equal moles of all gases occupy equal volumes at STP.

The given balanced equation is:

`2C_2H_2(g)+5O_2(g)\rightarrow 2H_2O(g)+4CO_2(g)`

According to stoichiometry :

4 L of
`CO_2` is formed by = 2 L of
`C_2H_2`

Thus 40.0 L of
`CO_2` is formed by =
`(2 L)/(4L)* 40.0L=20.0L` of
`C_2H_2`

Thus 20.0 L of
`C_2H_2` is required to form 40.0L of
`CO_2`