Mole to Gram Conversion:
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The mole to gram conversion is a fundamental chemistry calculation that converts the amount of substance (in moles) to mass (in grams) using the molecular weight of the compound.
The calculator uses the simple formula:
Where:
Explanation: This formula directly converts between the number of particles (moles) and measurable mass (grams) using the molecular weight as a conversion factor.
Details: This conversion is essential for preparing solutions with specific molar concentrations, stoichiometric calculations in chemical reactions, and determining reagent quantities in experiments.
Tips: Enter the amount of substance in moles and the molecular weight in g/mol. Both values must be positive numbers. The molecular weight can be calculated by summing the atomic weights of all atoms in the molecule.
Q1: Why convert between moles and grams?
A: Moles represent the number of particles, while grams represent measurable mass. Converting between them allows practical measurement of chemical substances.
Q2: How do I find molecular weight?
A: Sum the atomic weights of all atoms in the molecule from the periodic table. For example, water (H₂O) has MW = 2(1.008) + 15.999 = 18.015 g/mol.
Q3: Can I convert grams to moles with this?
A: The reverse calculation is n = g/MW, which can be done by entering the mass as "moles" and 1/MW as "molecular weight".
Q4: What's the difference between molecular weight and molar mass?
A: They are numerically identical (same value) but molecular weight is unitless while molar mass has units of g/mol.
Q5: How precise should my molecular weight be?
A: Use at least 3 decimal places for precise calculations, though 2 may suffice for many practical purposes.