Question

Який об'єм карбону 4 оксиду виділиться при взаємодії нітратної кислоти з розчином натрій карбонату масою 560 Г ДЕ МАСОВА ЧАСТКА СОЛІ СТАНОВИТЬ 10%

Answer 1

Дано:
m(p.Na2CO3)= 560 r
ω(Na2CO3) = 10%  або 0,1
Знайти:
V(CO2)-?

m(Na2CO3) = m(p.Na2CO3)*ω(Na2CO3) = 560 г*0,1 = 56 г
M(Na2CO3) = 106 г/моль
n(Na2CO3) = m/M = 56 г/106 г/моль = 0,5283 моль

Na2CO3 + 2HNO3 = 2NaNO3 + CO2 + H2O
З рівняння хімічної реакції бачимо, що n(CO2) = n(Na2CO3)
n(CO2) = 0,5283 моль
V(CO2) = n*Vm = 0,5283 моль*22,4 л/моль = 11,834 л
Відповідь: 11,834 л СО2

Answer 2

Reaction of Nitric Acid with Sodium Carbonate

When nitric acid reacts with sodium carbonate, the following chemical equation represents the reaction:

2 HNO3 + Na2CO3 → 2 NaNO3 + H2O + CO2

This equation shows that for every 2 moles of nitric acid reacting with 1 mole of sodium carbonate, 1 mole of carbon dioxide is produced.

Calculation of Carbon Dioxide Volume

To calculate the volume of carbon dioxide produced, we can use the ideal gas law, which states that the volume of a gas is directly proportional to the number of moles of the gas at constant temperature and pressure.

Given: - Mass of sodium carbonate (Na2CO3) = 560 g - Mass fraction of the salt = 10%

We can calculate the moles of sodium carbonate using its molar mass, which is approximately 105.99 g/mol.

Moles of Na2CO3 = Mass of Na2CO3 / Molar mass of Na2CO3 Moles of Na2CO3 = 560 g / 105.99 g/mol ≈ 5.28 mol

According to the balanced chemical equation, 1 mole of sodium carbonate produces 1 mole of carbon dioxide. Therefore, the moles of carbon dioxide produced will also be approximately 5.28 mol.

Volume of Carbon Dioxide at Standard Conditions

At standard temperature and pressure (STP), 1 mole of any gas occupies approximately 22.4 liters. Therefore, the volume of carbon dioxide produced can be calculated as:

Volume of CO2 = Moles of CO2 * Molar volume at STP Volume of CO2 = 5.28 mol * 22.4 L/mol ≈ 118.27 L

So, the volume of carbon dioxide released when 560 g of sodium carbonate reacts with nitric acid is approximately 118.27 liters.