What mass of acetaldehyde can be obtained from 11.2 liters of acithelene and 14.4 grams of water

| June 1, 2021 | education

What mass of acetaldehyde can be obtained from 11.2 liters of acithelene and 14.4 grams of water by the Kucherov reaction.

V (C2H2) = 11.2 l m (H2O) = 14.4 g Find: m (CH3-COH) -?
Decision:
1) Write the reaction equation: C2H2 + H2O = (HgSO4, H +) => CH3-COH 2) Find the amount of substance C2H2: n (C2H2) = V (C2H2) / Vm = 11.2 / 22.4 = 0.5 mole; 3) Find the amount of substance H2O: n (H2O) = m (H2O) / Mr (H2O) = 14.4 / 18 = 0.8 mol; 4) Compare the amount of the substance C2H2 and H2O: The amount of the substance C2H2 is in short supply, therefore, the calculations will be carried out for it; 5) Find the amount of CH3-COH substance (taking into account the reaction equation): n (CH3-COH) = n (C2H2) = 0.5 mol; 6) Find the mass of the substance C2H2: m (CH3-COH) = n (CH3-COH) * Mr (CH3-COH) = 0.5 * 44 = 22 g.
Answer: The mass of CH3-COH formed was 22 g.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.