Absorption of CO2 in KOH solution during combustion analysis is?
Correct answer: A. Chemical change
- A. Chemical change
- B. Neither chemical nor physical change
- C. Physical change
- D. CO2 absorbed in Mg(CLO4)2
Explanation
During combustion analysis, CO2 is chemically absorbed in 50% KOH.
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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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