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Sulfurous acid is unstable in aqueous solution and gradually decomposes to water and
Chapter 9, Problem 33(choose chapter or problem)
Sulfurous acid is unstable in aqueous solution and gradually decomposes to water and sulfur dioxide gas (which explains the choking odor associated with sulfurous acid solutions). H2SO3(aq) S H2O(l) _ SO2(g) If 4.25 g of sulfurous acid undergoes this reaction, what mass of sulfur dioxide is released?
Questions & Answers
QUESTION:
Sulfurous acid is unstable in aqueous solution and gradually decomposes to water and sulfur dioxide gas (which explains the choking odor associated with sulfurous acid solutions). H2SO3(aq) S H2O(l) _ SO2(g) If 4.25 g of sulfurous acid undergoes this reaction, what mass of sulfur dioxide is released?
ANSWER:Step 1 of 3
Stoichiometry
Stoichiometry illustrates the relative amounts of chemical entities (reactants and products) involved in a reaction. It is represented as a mole ratio in a balanced chemical equation called stoichiometric coefficients.
The stoichiometric coefficients are generally used for two purposes:
1. To determine theoretical yield.
2. To identify limiting and excess reagents.
Identifying the stoichiometric coefficients involves balancing the atom count of each element in the LHS and RHS of a chemical equation. This is based on the law of conservation of mass.