Πώς να υπολογίσετε το Limiting Reagent
Τι είναι το Limiting Reagent;
The limiting reagent is the reactant that is completely consumed first in a chemical reaction, determining the maximum amount of product that can form. The other reactants are "in excess." Identifying the limiting reagent is essential for calculating theoretical yield.
Οδηγός βήμα προς βήμα
- 1Write and balance the chemical equation
- 2Convert all reactant masses to moles
- 3Divide moles of each reactant by its stoichiometric coefficient
- 4The reactant with the smallest quotient is the limiting reagent
Worked Examples
Εισαγωγή
2H₂ + O₂ → 2H₂O · 4 mol H₂ and 1.5 mol O₂
Αποτέλεσμα
O₂ is limiting (need 2 mol O₂ for 4 mol H₂)
H₂ ratio: 4/2=2; O₂ ratio: 1.5/1=1.5 → O₂ limits
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