Which conversion factor is needed to solve the following problem? How many liters of oxygen gas (O2) is needed to produce 3.5 liters of water vapor (H2O) at STP?

O2(g) + 2H2(g) --> 2H2O(g)

Question 1 options:

Molar Volume

Molar Mass of oxygen gas

Molar Mass of water

Avogadro's Number

Cis the answer ur welcome if i get it wrong u don't have to me

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