The molar volume of SO2 gas at STP is:
Correct answer: C. 22.4 dm3
- A. 64 dm3
- B. 24 dm3
- C. 22.4 dm3
- D. 2.24 dm3
Explanation
The molar volume of any ideal gas at Standard Temperature and Pressure (STP) is approximately 22.4 liters per mole (L/mol). STP is defined as: Temperature (T) = 0 degrees Celsius (273.15 Kelvin) Pressure (P) = 1 atmosphere (atm) or 101.3 kPa (kilopascals) So, the molar volume of SO₂ gas at STP is also approximately 22.4 L/mol, just like any other ideal gas at the same conditions.
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Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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