How many moles of ethylene are needed to produce 184 g of ethanol?

Let’s execute the solution:
1. Let us write down the equation according to the problem statement:
X mole -? m = 184 g;
H2C = CH2 + H2O = CH3 – CH2 – OH – ethylene hydration occurs in water vapor,
ethyl alcohol is obtained;
2. Calculation of the molar masses of substances:
M (C2H4) = 28 g / mol;
M (C2H5OH) = 46 g / mol.
3. Calculate the number of moles of ethanol, if its mass is known:
Y (C2H5OH) = m / M = 184/46 = 4 mol;
Y (C2H4) = 4 mol since the amount of these substances according to the equation is 1 mol.
Answer: to carry out the hydration, ethylene was required in the amount of 4 mol.