1. What is Molar Ratio?

The molar ratio is the ratio of moles of one substance to the moles of another substance in a chemical reaction or mixture. It's a fundamental concept in stoichiometry and chemical analysis.

2. How Does the Calculator Work?

The calculator uses the molar ratio formula:

Where:

• moles A — Amount of substance A (in moles)
• moles B — Amount of substance B (in moles)

Explanation: The ratio compares the quantities of two substances on a molecular level, which is essential for reaction stoichiometry and solution preparation.

3. Importance of Molar Ratio

Details: Molar ratios are crucial for balancing chemical equations, determining limiting reactants, preparing solutions with specific concentrations, and understanding reaction mechanisms.

4. Using the Calculator

Tips: Enter the moles of both substances (must be positive numbers). The calculator will compute their ratio, which is dimensionless (no units).

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between molar ratio and mass ratio?
A: Molar ratio compares numbers of molecules/atoms, while mass ratio compares weights. Molar ratio is more useful for chemical reactions.

Q2: Can molar ratio be greater than 1?
A: Yes, when there are more moles of the numerator substance than the denominator substance.

Q3: How is molar ratio used in stoichiometry?
A: The coefficients in balanced chemical equations represent molar ratios of reactants and products.

Q4: What's an example of molar ratio in real applications?
A: In buffer preparation, you might need a specific molar ratio of weak acid to its conjugate base (e.g., 1:1 in Henderson-Hasselbalch equation).

Q5: How precise should molar ratios be?
A: Precision depends on the application. Some reactions require exact ratios, while others can tolerate small deviations.