Calculate the mass of carbon dioxide, which is formed during the complete combustion

| June 15, 2021 | education

Calculate the mass of carbon dioxide, which is formed during the complete combustion of acetylene C2H2 with a mass of 260 g.

In air and with a lack of oxygen, acetylene burns with a smoky flame to water, soot and carbon monoxide. In a sufficient amount of oxygen, it burns out completely with the formation of carbon dioxide and water. The flame temperature during combustion in oxygen is very high (up to 3000 ° C), therefore it is used for welding and cutting metals.

The equation for complete combustion in oxygen:

2 C2H2 + 5 O2 = 4 CO2 + 2 H2O

Molar mass of acetylene = 26 g / mol, molar mass of carbon dioxide = 44 g / mol.

Let’s calculate the mass of the formed carbon dioxide through the proportion:

260 g C2H2 corresponds to X g CO2 as

2 * 26 g / mol C2H2 corresponds to 4 * 44 g CO2.

X = (260 * 4 * 44) / (2 * 26) = 880 g of carbon dioxide.

Answer: 880 g of carbon dioxide was formed.



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