Question

Сколько грамм уксусной кислоты получится из 4,4 г уксусного альдегида , если выход продукта 65%

Answer 1

Дак простая пропорция:

4.4г  -  100%
?г    - 65%

65*4.4\100=2.86 г

Answer 2

Calculating the Amount of Acetic Acid Produced from Acetaldehyde

To calculate the amount of acetic acid produced from 4.4 grams of acetaldehyde with a 65% yield, we can use the following steps:

1. Determine the Molar Mass of Acetaldehyde and Acetic Acid: - The molar mass of acetaldehyde (CH3CHO) is approximately 44.05 g/mol. - The molar mass of acetic acid (CH3COOH) is approximately 60.05 g/mol.

2. Calculate the Number of Moles of Acetaldehyde: - Number of moles = Mass / Molar mass - Number of moles of acetaldehyde = 4.4 g / 44.05 g/mol

3. Determine the Theoretical Yield of Acetic Acid: - The theoretical yield is the maximum amount of product that can be obtained in a chemical reaction. - The theoretical yield of acetic acid can be calculated based on the stoichiometry of the reaction.

4. Calculate the Actual Yield of Acetic Acid: - The actual yield is the amount of product obtained from a chemical reaction. It is often expressed as a percentage of the theoretical yield.

5. Calculate the Amount of Acetic Acid Produced: - Amount of acetic acid produced = Actual yield of acetic acid * Molar mass of acetic acid

Calculation Steps

1. Determine the Molar Mass of Acetaldehyde and Acetic Acid: - The molar mass of acetaldehyde (CH3CHO) is approximately 44.05 g/mol. - The molar mass of acetic acid (CH3COOH) is approximately 60.05 g/mol.

2. Calculate the Number of Moles of Acetaldehyde: - Number of moles = Mass / Molar mass - Number of moles of acetaldehyde = 4.4 g / 44.05 g/mol - Number of moles of acetaldehyde ≈ 0.1 mol

3. Determine the Theoretical Yield of Acetic Acid: - The balanced chemical equation for the conversion of acetaldehyde to acetic acid is: CH3CHO + O2 → CH3COOH - Based on the stoichiometry of the reaction, 1 mole of acetaldehyde produces 1 mole of acetic acid.

4. Calculate the Actual Yield of Acetic Acid: - The actual yield is given as 65% of the theoretical yield.

5. Calculate the Amount of Acetic Acid Produced: - Amount of acetic acid produced = Actual yield of acetic acid * Molar mass of acetic acid - Amount of acetic acid produced ≈ 0.065 * (0.1 mol * 60.05 g/mol) ≈ 0.39025 g

Conclusion

Based on the given information, approximately 0.39025 grams of acetic acid would be produced from 4.4 grams of acetaldehyde with a 65% yield.