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Molar Ratio Formula:
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Molar ratio represents the stoichiometric relationship between substances in a chemical reaction. It shows the proportion of moles of one substance to moles of another substance based on the balanced chemical equation.
The calculator uses the molar ratio formula:
Where:
Explanation: The molar ratio is a unitless quantity that determines the stoichiometric ratio from moles, providing the exact proportion between reactants or products in a chemical reaction.
Details: Molar ratio calculations are essential for determining reaction stoichiometry, predicting product yields, identifying limiting reagents, and ensuring proper reactant proportions in chemical synthesis.
Tips: Enter the number of moles for both substance A and substance B. Both values must be positive numbers greater than zero. The calculator will compute the molar ratio A:B.
Q1: What is the difference between molar ratio and mass ratio?
A: Molar ratio is based on the number of moles (particles), while mass ratio is based on mass. Molar ratio is more fundamental in chemical calculations as it relates directly to the balanced chemical equation.
Q2: Can molar ratio be greater than 1?
A: Yes, molar ratio can be any positive number. A ratio greater than 1 means there are more moles of substance A than substance B, while a ratio less than 1 means the opposite.
Q3: How do I find moles from mass?
A: Use the formula: Moles = Mass (g) / Molar Mass (g/mol). You need to know the molar mass of each substance to convert between mass and moles.
Q4: What does a molar ratio of 2:1 mean?
A: A molar ratio of 2:1 means that for every 2 moles of substance A, there is 1 mole of substance B. This is commonly seen in balanced chemical equations.
Q5: Is molar ratio affected by temperature and pressure?
A: No, molar ratio is a stoichiometric relationship that remains constant regardless of temperature and pressure conditions, as it's based on the balanced chemical equation.