What mass in g of acetic acid can be obtained from 112 liters of acetylene?

Let’s write the equations:
С2Н2 + Н2О = Н2С = СНОН = Н3С – СОН – hydration of acetylene, vinyl alcohol is released, which in the process of isomerization turns into acetaldehyde;
Н3С – СОН + Ag2O = CH3COOH + 2Ag – oxidation of aldehyde, acetic acid was obtained.
Let’s calculate the molar mass of acetic acid:
M (C2H4O2) = 60 g / mol.
Let us determine the number of moles of acetylene, if the volume is known:
1 mol of gas at normal level – 22.4 liters.
X mol (C2H2) – 112 liters. hence, X mol (C2H2) = 1 * 112 / 22.4 = 5 mol.
According to the equation, the number of moles of acetylene, aldehyde and acetic acid is 1 mole, which means that Y (C2H4O2) = 5 moles.
We find the mass of acetic acid:
m (C2H4O2) = Y * M = 5 * 60 = 300 g.
Answer: the mass of acetic acid is 300 g.