Chemical Stoichiometry Solution Chain

validated scientific chain v1.0.0 cc-by-sa

Block ID: 3a2224a4-df5d-41c5-ac75-3f83de2e2e98

Community-contributed block. PromptDNA makes no guarantee of output quality or fitness for purpose. User assumes all responsibility for use.

Template

Solve the stoichiometry problem in {reaction_problem} in strict order. (1) Write the balanced chemical equation, showing the balancing process and verifying atom counts per element on both sides — everything downstream inherits an unbalanced equation's error. (2) Convert every given quantity to moles: mass via molar mass (show the molar mass computation from atomic masses), volume of gas via the appropriate gas relationship at the stated conditions, or solution volume via molarity. (3) Identify the limiting reagent by dividing each reactant's moles by its stoichiometric coefficient and taking the smallest — state this comparison explicitly rather than assuming the smaller mass limits. (4) Compute the theoretical yield of the requested product from the limiting reagent via the mole ratio. (5) Convert back to the requested units (mass, volume, concentration), showing the conversion. (6) If an actual yield is given, compute percent yield; regardless, compute the excess reagent remaining. Carry units through every step and check that the final significant figures reflect the least precise given value.

Solve the stoichiometry problem in {reaction_problem} in strict order. (1) Write the balanced chemical equation, showing the balancing process and verifying atom counts per element on both sides — everything downstream inherits an unbalanced equation's error. (2) Convert every given quantity to moles: mass via molar mass (show the molar mass computation from atomic masses), volume of gas via the appropriate gas relationship at the stated conditions, or solution volume via molarity. (3) Identify the limiting reagent by dividing each reactant's moles by its stoichiometric coefficient and taking the smallest — state this comparison explicitly rather than assuming the smaller mass limits. (4) Compute the theoretical yield of the requested product from the limiting reagent via the mole ratio. (5) Convert back to the requested units (mass, volume, concentration), showing the conversion. (6) If an actual yield is given, compute percent yield; regardless, compute the excess reagent remaining. Carry units through every step and check that the final significant figures reflect the least precise given value.

Variables

Name	Type	Required	Trust level
reaction_problem		yes

stoichiometrychemistrylimiting-reagentchain-of-thought

Ratings

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Overall (0)

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Accuracy

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Consistency

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Clarity

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Efficiency

Benchmarks

Not yet self-validated against any benchmark. Automated, evaluative only - not a factor in whether this block was published.

Submitted by James P FounderMod via mcp · 2026-07-18