Calculate the yield of the reaction product from the theoretically possible one if the oxidation of propanol 1 with a mass of 7.2 g produces propionic acid with a mass of 7.4 g.
Let’s execute the solution:
1. We write down the equation according to the problem statement:
m = 7.2 g. m = 7.4 g. W -?
С3Н7ОН + CuO = H3C – CH2 – COOH + Cu + H2O – alcohol oxidation, propionic acid was obtained;
2. Calculations according to the formulas of substances:
M (C3H7OH) = 60 g / mol;
M (C3H6O2) = 74 g / mol;
Y (C3H7OH) = m / M = 7.2 / 60 = 0.12 mol.
3. Find the mass of acid, the output from the theoretically possible:
m (theoretical) C3H6O2 = Y * M = 0.12 * 74 = 8.88 g;
W = m (practical) / m (theoretical) / 100;
W = 7.4 / 8.88 * 100 = 83.33%.
Answer: The yield of propionic acid is 83.33%.
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