What volume of ethylene is required to obtain ethyl alcohol with a mass of 9.2?

Let’s write down the solution, make up the equation:
С2Н4 + Н2О = С2Н5ОН – the reaction of ethylene hydration occurs when heated, a copper catalyst is used, ethyl alcohol is obtained;
M (C2H4) = 28 g / mol;
M (C2H5OH) = 46 g / mol;
Let’s calculate the number of moles of ethyl alcohol by the formula:
Y (C2H5OH) = m / M = 9.2 / 46 = 0.2 mol;
According to the equation, the number of moles of ethylene and ethanol are equal to 1 mol, hence, Y (C2H4) = 0.2 mol.
Find the volume of ethylene:
V (C2H4) = 0.2 * 22.4 = 4.48 l.
Answer: the volume of ethylene is 4.48 liters.