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.

What Is the Grams to Moles Calculator?

The Grams to Moles Calculator is a handy tool for anyone studying Chemistry. It helps you convert the mass of a substance in grams to the number of moles. Understanding this conversion is important because it allows you to relate the mass of a substance to its amount in terms of molecules or atoms. This makes it easier to carry out experiments and calculations in the lab.

How Does the Calculator Work?

Using the calculator is straightforward. You start by selecting a compound from a list. Each compound has a specific molar mass, which is the mass of one mole of that substance. After selecting the compound, you simply enter the mass in grams. The calculator then applies the formula: moles = mass (g) ÷ molar mass (g/mol). The result shows how many moles are in the given mass.

Benefits of Using the Calculator

This calculator comes with several advantages that make it a valuable resource for students and professionals alike. Here are some key benefits:

Quickly converts grams to moles without manual calculations.
Provides a list of common compounds, saving time on looking up molar masses.
Supports custom compounds for more complex needs.
Displays detailed information about the selected compound, including its formula and molar mass.

Understanding Molar Mass

Molar mass is a crucial concept in chemistry. It tells you the mass of one mole of a substance, measured in grams per mole (g/mol). Each compound has a unique molar mass based on the types and numbers of atoms it contains. Knowing the molar mass helps in converting between grams and moles, which is essential for chemical reactions and stoichiometry.

Converting Moles to Grams

Besides converting grams to moles, this calculator also allows you to convert in the opposite direction. If you know the number of moles and want to find the mass in grams, you can do that too. For this, you select the compound, enter the number of moles, and the calculator will compute the mass using the formula: mass (g) = moles × molar mass (g/mol).

Custom Compound Feature

The Grams to Moles Calculator isn't just limited to common compounds. If you have a unique or custom compound, you can enter its chemical formula directly. This feature allows you to calculate the molar mass, making the calculator adaptable to a wide range of substances. Just type in the formula, and the tool will take care of the rest.

Additional Resources for Users

The calculator also provides users with helpful information on molecular conversions. This includes details about:

The concept of Avogadro's number, which is 6.022 × 10²³ entities per mole.
How to calculate molar mass by adding atomic masses of each element in a compound.
Alternative units such as millimoles, micromoles, and the number of particles.

Why Chemistry Students Should Use This Tool

For chemistry students, mastering the gram-to-mole conversion is vital. This calculator simplifies the process, making it easier to focus on understanding chemical reactions and concepts. It's an essential tool for anyone looking to succeed in chemistry, whether in school or at the university level. With its user-friendly design and detailed outputs, it enhances learning and fosters confidence in handling chemical calculations.

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