Home Back

Molar Ratio Calculation

Molar Ratio Formula:

\[ \text{Ratio} = \frac{\text{Coefficient A}}{\text{Coefficient B}} \]

unitless
unitless

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is Molar Ratio?

Molar ratio represents the proportion of coefficients between two substances in a balanced chemical equation. It indicates the relative amounts of reactants and products involved in a chemical reaction.

2. How Does the Calculator Work?

The calculator uses the molar ratio formula:

\[ \text{Ratio} = \frac{\text{Coefficient A}}{\text{Coefficient B}} \]

Where:

Explanation: The ratio is derived directly from the balanced chemical equation and represents the mole-to-mole relationship between the two substances.

3. Importance of Molar Ratio Calculation

Details: Molar ratios are essential for stoichiometric calculations, determining limiting reactants, predicting product yields, and understanding reaction stoichiometry in chemical equations.

4. Using the Calculator

Tips: Enter the stoichiometric coefficients from a balanced chemical equation. Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is a stoichiometric coefficient?
A: A stoichiometric coefficient is the number written before a chemical formula in a balanced equation, indicating the relative number of moles of that substance.

Q2: Can molar ratio be used for mass calculations?
A: Yes, molar ratio combined with molar masses can be used to convert between masses of different substances in a chemical reaction.

Q3: What does a molar ratio of 2:1 mean?
A: It means that for every 2 moles of substance A, there is 1 mole of substance B involved in the reaction.

Q4: Are molar ratios always whole numbers?
A: In balanced chemical equations, stoichiometric coefficients are typically whole numbers, but ratios can be fractional when simplified.

Q5: How is molar ratio different from mass ratio?
A: Molar ratio deals with mole quantities while mass ratio deals with mass quantities. They are related through the substances' molar masses.

Molar Ratio Calculation© - All Rights Reserved 2025