Grams to Moles Calculator

This Grams to Moles calculators is based on the following formula: Moles = mass (grams) ÷ molar mass (g/mol)

With our Grams to Moles Calculator, you can easily and accurately convert the mass of a substance in grams to the number of moles, using the substance's molar mass. This is a key tool in chemistry for determining the amount of substance in reactions.

Related article: mole meaning in chemistry

How to use this Grams to Moles Calculator

  1. Enter the mass of the substance in grams in the first field.
  2. Enter the molar mass of the substance in grams per mole (g/mol) in the second field.
  3. Click the 'Calculate' button to see the number of moles.
  4. The result will display with two decimal places.

G to Mole conversion formula explained:

Moles = mass (grams) ÷ molar mass (g/mol

The "mass" is the weight of your substance in grams, and the "molar mass" is the mass of one mole of that substance in grams per mole (g/mol). Dividing these gives you the number of moles

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Frequently Asked Questions (FAQ)

  • How do I convert grams to moles?
    Divide the mass in grams by the molar mass of the substance (in g/mol). This calculator automates that process using your inputs.
  • What is the molar mass of water?
    The molar mass of water (H₂O) is approximately 18.015 g/mol, which you can enter manually.
  • Can I use this calculator for different substances?
    Yes, you can use it for any substance by entering its specific molar mass.
  • Why am I getting a zero result?
    A zero result may occur if the mass or molar mass is zero or invalid. Ensure all inputs are valid and positive.
  • How accurate is the grams to moles conversion?
    The conversion is accurate based on the provided molar mass. Rounding to two decimal places may introduce minor precision loss.