Theoretical Yield from 5 g Limiting Reagent (2:1 Ratio)
With 5 g of a 50 g/mol limiting reagent producing a 100 g/mol product in a 2:1 ratio, the theoretical yield is 20 g.
How to use this tool
- Enter mass of limiting reagent, molar mass of limiting reagent, molar mass of product and stoichiometric ratio (mol product / mol reagent) in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your theoretical yield and the full breakdown beneath it.
Find the theoretical yield when the stoichiometric ratio of product to reagent is 2:1.
Frequently asked questions
- What is a limiting reagent?
- The reactant that is completely consumed first, limiting how much product can form. Any remaining reactant is in excess.
- Where do I find the stoichiometric ratio?
- From the balanced chemical equation. E.g. 2H₂ + O₂ → 2H₂O means 2 mol H₂ produces 2 mol H₂O, so ratio = 1:1. N₂ + 3H₂ → 2NH₃ means 1 mol N₂ → 2 mol NH₃, ratio = 2.