Respuesta :
Molar volume of O₂ at STP = 22400 cm³/mol
No. of moles of O₂ liberated = (1120 cm³) / (22400 cm³/mol) = 0.05 mol
According to the given equation,
mole ratio H₂O : O₂ = 2 : 1
No. of moles of H₂O produced = (0.05 mol) × 2 = 0.1 mol
Molar mass of H₂O = (1×2 + 16) g/mol = 18 g/mol
Mass of H₂O produced = (0.1 mol) × (18 g/mol) = 1.8 g
Volume of H₂O produced = (1.8 g) × (1 cm³/g) = 1.8 cm³
What is decomposition reaction with an example?
A decomposition reaction occurs when one reactant breaks down into two or more products. This can be represented by the general equation: AB → A + B. Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.
Why is decomposition reaction important?
Decomposition reactions are also called analysis reactions because they are extremely valuable in analytical techniques.
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