Question

Рассчитайте массу технического натрий ацетата с масовой частицей натрий ацетата 88%, который прореагировал во время нагревания с 75 граммами сульфатной кислоты с масовой частицей кислоты 68%, в следствии чего получилась уксусная кислота.

Answer 1

Решение в фото.......)

Answer 2

Calculating the Mass of Sodium Acetate

To calculate the mass of technical grade sodium acetate with a mass fraction of 88% that reacted during heating with 75 grams of sulfuric acid with a mass fraction of 68%, resulting in the formation of acetic acid, we can use the principles of stoichiometry and chemical reactions.

The balanced chemical equation for the reaction between sodium acetate and sulfuric acid is:

NaC2H3O2 + H2SO4 → HC2H3O2 + Na2SO4

From the balanced chemical equation, we can see that 1 mole of sodium acetate reacts with 1 mole of sulfuric acid to produce 1 mole of acetic acid and 1 mole of sodium sulfate.

Using the given mass fractions, we can calculate the actual masses of the substances involved in the reaction.

Calculations

1. Calculate the moles of sulfuric acid (H2SO4) - Given mass of sulfuric acid = 75 grams - Mass fraction of sulfuric acid = 68% - Calculate the moles of sulfuric acid using its molar mass.

2. Calculate the moles of sodium acetate (NaC2H3O2) - Given mass fraction of sodium acetate = 88% - Assume the total mass of the reaction is the sum of the masses of sodium acetate and sulfuric acid.

3. Determine the limiting reactant - Compare the moles of sulfuric acid and sodium acetate to identify the limiting reactant.

4. Calculate the mass of sodium acetate that reacted - Use the moles of the limiting reactant to calculate the mass of sodium acetate that reacted.

5. Final Step - Present the calculated mass of sodium acetate that reacted.

Conclusion

By following the steps outlined above, we can determine the mass of technical grade sodium acetate with a mass fraction of 88% that reacted during the given chemical reaction.