Calculate the volume of carbon dioxide that will be released when 10.6 g of sodium carbonate reacts with chloride acid.
September 7, 2021 | education
| 1.Let’s find the amount of sodium carbonate substance by the formula:
n = m: M.
M (Na2CO3) = 23 × 2 + 12 + 16 × 3 = 106 g / mol.
n = 10.6 g: 106 g / mol = 0.1 mol.
2. Let’s compose the reaction equation, find the quantitative ratios of substances.
Na2CO3 + 2HCl = 2NaCl + CO2 ↑ + H2O.
According to the reaction equation, 1 mol of sodium carbonate accounts for 1 mol of carbon dioxide. Substances are in quantitative ratios of 1: 1.
The amount of substance will be the same.
n (Na2CO3) = n (CO2) = 0.1 mol.
3.Let’s find the volume of carbon dioxide by the formula:
V = Vn n, where Vn is the molar volume of gas, equal to 22.4 l / mol, and n is the amount of substance.
V = 22.4 L / mol × 0.1 mol = 2.24 L.
Answer: 2.24 liters.
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