1. What is Molar Ratio?

The molar ratio is the proportion 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 calculations.

2. How to Calculate Molar Ratio

The molar ratio is calculated using the simple formula:

Where:

• \( \text{mol}_1 \) — Moles of the first substance
• \( \text{mol}_2 \) — Moles of the second substance

Explanation: The ratio represents how many moles of substance 1 are present per mole of substance 2. It's a unitless quantity.

3. Importance of Molar Ratio

Details: Molar ratios are crucial for:

• Balancing chemical equations
• Determining reaction stoichiometry
• Calculating theoretical yields
• Preparing solutions with specific concentrations

4. Using the Calculator

Tips:

• Enter the moles of both substances (must be positive numbers)
• The second value (denominator) cannot be zero
• The result is unitless (mol/mol)

5. Frequently Asked Questions (FAQ)

Q1: Can molar ratio be greater than 1?
A: Yes, when there are more moles of substance 1 than substance 2, the ratio will be greater than 1.

Q2: How is molar ratio different from mole fraction?
A: Molar ratio compares two components directly, while mole fraction is the ratio of one component to the total moles of all components.

Q3: Why is molar ratio important in stoichiometry?
A: It shows the proportional relationship between reactants and products in a balanced chemical equation.

Q4: Can I use grams instead of moles?
A: You must first convert grams to moles using molar masses to get an accurate molar ratio.

Q5: How precise should my molar ratio be?
A: Typically 3-4 significant figures are sufficient for most applications, but follow your specific requirements.