Question

яка кількість сульфату натрію утвориться в результаті взаємодії оксиду натрію з сульфатною кислотою масою 19,6 г?​

Answer 1

Na2O + H2SO4 = Na2SO4 + H2O

m(H2SO4) = 19,6 г

μ(Na2SO4) - ?

Решение:

1) μ(H2SO4) = μ(Na2SO4) = 19,6 г / 98 г/моль = 0,2 моль

Ответ: 0,2 моль

Answer 2

Calculation of Sodium Sulfate Formed from the Reaction

To calculate the amount of sodium sulfate formed from the reaction between sodium oxide and sulfuric acid, we can use the stoichiometry of the reaction to determine the amount of sodium sulfate produced.

The balanced chemical equation for the reaction is:

2 Na2O + H2SO4 → Na2SO4 + H2O

From the balanced equation, we can see that 2 moles of sodium oxide react with 1 mole of sulfuric acid to produce 1 mole of sodium sulfate.

Given the mass of sulfuric acid as 19.6 g, we need to first convert this mass to moles using the molar mass of sulfuric acid.

The molar mass of sulfuric acid (H2SO4) is: 1 mol of H2 = 2.02 g 1 mol of S = 32.07 g 4 mol of O = 4 * 16.00 g Molar mass of H2SO4 = 2 * 1.01 g + 32.07 g + 4 * 16.00 g = 98.09 g/mol

Now, we can calculate the number of moles of sulfuric acid: Number of moles = Mass / Molar mass Number of moles = 19.6 g / 98.09 g/mol Number of moles ≈ 0.2 moles

Since the reaction stoichiometry shows that 2 moles of sodium oxide react with 1 mole of sulfuric acid to produce 1 mole of sodium sulfate, we can calculate the moles of sodium sulfate formed.

Moles of sodium sulfate = 0.2 moles / 2 Moles of sodium sulfate = 0.1 moles

Now, we can convert the moles of sodium sulfate to grams using the molar mass of sodium sulfate.

The molar mass of sodium sulfate (Na2SO4) is: 2 mol of Na = 2 * 22.99 g 1 mol of S = 32.07 g 4 mol of O = 4 * 16.00 g Molar mass of Na2SO4 = 2 * 22.99 g + 32.07 g + 4 * 16.00 g = 142.04 g/mol

Mass of sodium sulfate formed = Moles * Molar mass Mass of sodium sulfate formed = 0.1 moles * 142.04 g/mol Mass of sodium sulfate formed ≈ 14.2 g

Therefore, approximately 14.2 grams of sodium sulfate will be formed as a result of the reaction between sodium oxide and sulfuric acid.