Grams to Moles Calculator

- May 10, 2025

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Select Compound:

Formula: H₂O

Molar Mass: 18.015 g/mol

Mass (g):

Decimal Places:

Use Scientific Notation:

Conversion Results

Conversion Result

0.0000

mol

Input Value

0.0000

Conversion Factor

1 mol = 18.015 g

Alternative Units

Millimoles

0.0000

mmol

Micromoles

0.0000

μmol

Particles

0.0000

× 10²³

Compound Details

Formula:

H₂O

Molar Mass:

18.015 g/mol

Elements:

H (2), O (1)

Atoms per Molecule:

Elemental Composition

Element	Count	Mass %	Mass (g/mol)
Total	3	100%	18.015

About Mole Conversions

The mole is the SI unit for measuring the amount of a substance.
One mole contains exactly 6.022 × 10²³ elementary entities (Avogadro's number).
The molar mass of a compound is the mass of one mole of the substance in grams.
To convert from grams to moles: moles = mass (g) ÷ molar mass (g/mol).
To convert from moles to grams: mass (g) = moles × molar mass (g/mol).
In chemistry, moles are preferred over mass because they directly represent the number of particles.
The molar mass of a compound can be calculated by adding the atomic masses of all atoms in the formula.

Understanding the Grams to Moles Calculator

The Grams to Moles Calculator is a handy tool for anyone studying Chemistry. It helps convert a mass of a substance measured in grams into the amount in moles. This calculator is particularly useful for students and professionals who need to understand the relationships between mass and moles. With just a few inputs, you can make complex calculations easy and quick.

How the Calculator Works

The calculator operates on a simple formula: moles equal mass divided by molar mass. By selecting a specific compound from a list, the tool automatically provides its molar mass. Users can either input the mass they have or choose to work with moles to find out the corresponding mass. This makes it flexible and user-friendly for various chemistry applications.

Choosing Your Compound

When using the Grams to Moles Calculator, you'll need to select a compound. The tool comes with a dropdown list of common substances, including:

Water (H₂O) - 18.015 g/mol
Sodium Chloride (NaCl) - 58.44 g/mol
Glucose (C₆H₁₂O₆) - 180.156 g/mol
Ethanol (C₂H₅OH) - 46.07 g/mol

If you’re working with a different compound, you can enter a custom formula to get accurate results.

Inputting Your Values

To use the calculator effectively, you simply enter the mass of the compound in grams. For instance, if you have a certain weight of sodium chloride, you can input that value, and the calculator will give you the equivalent in moles. It’s straightforward and provides immediate results, making it a great study aid.

Results You’ll Receive

Once you enter your values, the calculator provides several outputs. You’ll see:

The conversion result in moles.
The input value you provided in grams.
The conversion factor that shows how many grams correspond to one mole of your selected compound.

These results are displayed clearly to help you understand your calculations better.

Alternative Unit Conversions

Besides providing results in moles, the calculator also offers conversions into Other units. You can see the equivalent in millimoles and micromoles, which are particularly useful for small-scale chemical reactions. Additionally, it shows the number of particles, making it easy to comprehend how many individual molecules you have based on your mass.

Understanding Molar Mass

One key concept in using this calculator is molar mass. It's the weight of one mole of a substance, typically expressed in grams per mole (g/mol). Knowing how to calculate molar mass is essential, as it forms the basis for converting mass to moles. The calculator makes it easy by presenting this value automatically when you select a compound from the list.

Benefits of Using This Calculator

Using the Grams to Moles Calculator has several advantages:

It simplifies complex calculations, making learning easier.
It saves time with instant results.
It accommodates a wide range of compounds for diverse needs.
It helps in understanding fundamental chemistry concepts like molar mass and mole conversions.

Whether you’re a student, teacher, or professional chemist, this calculator is a valuable tool in your chemistry toolkit.

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