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## How do you find moles from molar mass?

A substance’s molar mass is calculated by **multiplying its relative atomic mass by the molar mass constant** (1 g/mol). The molar mass constant can be used to convert mass to moles. By multiplying a given mass by the molar mass, the amount of moles of the substance can be calculated.

## How do you find moles?

Avogadro’s number is a very important relationship to remember: **1 mole = 6.022×1023** 6.022 × 10 23 atoms, molecules, protons, etc. To convert from moles to atoms, multiply the molar amount by Avogadro’s number. To convert from atoms to moles, divide the atom amount by Avogadro’s number (or multiply by its reciprocal).

## How do you find moles from liters?

Converting from moles to volume (liters): Multiply your mole value by the molar volume constant, **22.4L**. Converting from particles (atoms, molecules, or formula units) to moles: Divide your particle value by Avogadro’s number, 6.02×10^{23}. Remember to use parentheses on your calculator!

## What is the formula for calculating moles?

**Divide the number of grams of each reactant by the number of grams per mole for that reactant**. 50.0 g of Na are used in this reaction, and there are 22.990 g/mol. 50.0 ÷ 22.990 = 2.1749. 2.1749 moles of Na are used in this reaction.

## How do we get from moles to mass formula?

**Multiply the molecular weight by the number of moles for the substance**. The molecular weight is the number of grams per mole for the substance and gives the conversion factor for moles to grams for that particular substance. So, one mole of water has a mass of 18.02 grams (1 mol H2O x 18.02 g/mol = 18.02 g).

## How do you find moles with molarity and volume?

The equation for calculating Molarity from the moles and volume is very simple. **Just divide moles of solute by volume of solution**.