# What role does the mole play in chemistry and stoichiometry?

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## What is the role of mole in stoichiometry?

Quantities of substances can be related to each other using balanced chemical equations. The mole is a key unit in chemistry. … Balanced chemical reactions are balanced in terms of moles. A balanced chemical reaction gives equivalences in moles that allow stoichiometry calculations to be performed.

## What is the mole used for in chemistry?

mole, also spelled mol, in chemistry, a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles. The mole designates an extremely large number of units, 6.02214076 × 1023.

## What is stoichiometry and why is it important?

Given a chemical reaction, stoichiometry tells us what quantity of each reactant we need in order to get enough of our desired product. Because of its real-life applications in chemical engineering as well as research, stoichiometry is one of the most important and fundamental topics in chemistry.

## What is the difference between mole and molecule?

A mole is the measure of a certain number of atoms. … Hence, the difference between moles and molecules is that a mole is a quantity of 6.022×1023 particles, while a molecule contains various atoms of elements bonded chemically.

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## What is the mole formula?

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).

## What is the formula for moles to grams?

In order to convert the moles of a substance to grams, you will need to multiply the mole value of the substance by its molar mass.

## Why is it called mole ratio?

Each part of the ratio of coefficients for the chemical reaction was multiplied by the same number, so the reduced ratio is the same. … The ratio obtained from the coefficients in a balanced chemical equation is called the mole ratio.

## Why do we use stoichiometry?

Stoichiometry allows us to make predictions about the outcomes of chemical reactions. … Predict the mass of a product of a chemical reaction if given the starting masses of reactants. Predict the volume of a gas which will be produced by a reaction if given the starting amounts of reactants.