Mole Calculator

What is a Mole Calculator?

Mole Calculator is a chemistry tool that allows us to calculate the number of moles, mass, number of particles (atoms, molecules, ions), or volume (for gases) of a substance. This concept is based on the mole concept, which is a very important topic in chemistry.

What is the mole concept?

A mole is a unit used to count particles (atoms, molecules, ions, etc.). There are 6.022 × 10²³ particles in one mole – this number is called Avogadro’s Number.

Example:

  • 1 mole of H₂O = 6.022 × 10²³ water molecules
  • 1 mole of Na = 6.022 × 10²³ sodium atoms

How to use the Mole Calculator?

All you need to do is enter some information — like mass, molar mass, or number of particles — and the calculator automatically calculates the mole or other quantity.

When Mass is Given:

Formula:

\[
\text{Moles} = \frac{\text{Given Mass (g)}}{\text{Molar Mass (g/mol)}}
\]

Example.

If you have 36g of water (H₂O), and the molar mass is 18 g/mol, then—

\[
\text{Moles} = \frac{36}{18} = 2\,\text{mol}
\]

When number of particles is given:

Formula:

\[
\text{Moles} = \frac{\text{Number of particles}}{6.022 \times 10^{23}}
\]

Example:

if has 1.204 × 10²⁴ molecules,

\[
\text{Moles} = \frac{1.204 \times 10^{24}}{6.022 \times 10^{23}} = 2\,\text{mol}
\]

Features of Mole Calculator:

  1. Mass → Moles conversion
  2. Moles → Mass conversion
  3. Particles ↔ Moles conversion
  4. Volume ↔ Moles (for gases) conversion
  5. Quick, accurate and easy-to-use interface

Applications of Mole Concept:

  1. To balance chemical equations
  2. To calculate the amount of reactants and products
  3. To solve stoichiometry problems
  4. To find the exact quantity of a substance in lab experiments.

FAQs

Q1. What does a mole represent?
A mole represents 6.022 × 10²³ particles of a substance (atoms, molecules, or ions).

Q2. Can we calculate gas volume using a mole calculator?
Yes, at STP (Standard Temperature and Pressure), 1 mole of gas = 22.4 liters.

Q3. How do we find molar mass?
To find molar mass, add the atomic masses of all elements in the compound.
Example: For H₂O → 2(1) + 16 = 18 g/mol.

Q4. Is the mole calculator only for solids?
No, the mole calculator can be used for solids, liquids, and gases.

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