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Equivalent Weight Formula

GoEquivalent Weight for Acids Formula

GoEquivalent weight for base Formula

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Equivalent Weight (also known as gram equivalent) is the mass of one equivalent, that is the mass of a given substance. Check FAQs

W eq = \frac{MW}{nf}

W _eq - Equivalent Weight?MW - Molecular Weight?nf - N Factor?

Equivalent Weight Example

With values

With units

Only example

Here is how the Equivalent Weight equation looks like with Values.

Here is how the Equivalent Weight equation looks like with Units.

Here is how the Equivalent Weight equation looks like.

13.3333 = \frac{120}{9}

13.3333g = \frac{120g}{9}

13.3333 = \frac{120}{9}

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Equivalent Weight Solution

Follow our step by step solution on how to calculate Equivalent Weight?

FIRST Step Consider the formula

W eq = \frac{MW}{nf}

Next Step Substitute values of Variables

∴

W eq = \frac{120g}{9}

Next Step Convert Units

∴

W eq = \frac{0.12kg}{9}

Next Step Prepare to Evaluate

∴

W eq = \frac{0.12}{9}

Next Step Evaluate

∴

W eq = 0.0133333333333333kg

Next Step Convert to Output's Unit

∴

W eq = 13.3333333333333g

LAST Step Rounding Answer

∴

W eq = 13.3333g

Equivalent Weight Formula Elements

Variables

Equivalent Weight

Equivalent Weight (also known as gram equivalent) is the mass of one equivalent, that is the mass of a given substance.

Symbol: W _eq

Measurement: WeightUnit: g

Note: Value can be positive or negative.

Formulas to find Equivalent Weight

Molecular Weight

Molecular Weight is the mass of a given molecule.

Symbol: MW

Measurement: WeightUnit: g

Note: Value can be positive or negative.

Formulas to find Molecular Weight

N Factor

N Factor of substance in a redox reaction is equal to the number of moles of electron lost or gained per mole.

Symbol: nf

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find N Factor

Other Formulas to find Equivalent Weight

Go Equivalent Weight for Acids

W eq = \frac{M acid}{pH}

Go Equivalent weight for base

W eq = \frac{M base}{Basicity}

Go Equivalent Weight of Oxidising Agent

W eq = \frac{M}{n electrons gained}

Go Equivalent Weight of Reducing Agent

W eq = \frac{M}{n electrons lost}

Other formulas in Equivalent Weight category

Go Oxidation Number

Oxidation number = Ne Valence Shell - Ne After Bonding

Go Number of Electrons in Valence Shell

Ne Valence Shell = Oxidation number + Ne After Bonding

Go Number of Electrons Left after Bonding

Ne After Bonding = Ne Valence Shell - Oxidation number

Go Acidity given Equivalent Weight

pH = \frac{M acid}{W eq}

How to Evaluate Equivalent Weight?

Equivalent Weight evaluator uses Equivalent Weight = Molecular Weight/N Factor to evaluate the Equivalent Weight, Equivalent Weight is the mass of one equivalent, that is the mass of a given substance which will combine with or displace a fixed quantity of another substance. Equivalent Weight is denoted by W _eq symbol.

How to evaluate Equivalent Weight using this online evaluator? To use this online evaluator for Equivalent Weight, enter Molecular Weight (MW) & N Factor (nf) and hit the calculate button.

FAQs on Equivalent Weight

What is the formula to find Equivalent Weight?

The formula of Equivalent Weight is expressed as Equivalent Weight = Molecular Weight/N Factor. Here is an example- 13333.33 = 0.12/9.

How to calculate Equivalent Weight?

With Molecular Weight (MW) & N Factor (nf) we can find Equivalent Weight using the formula - Equivalent Weight = Molecular Weight/N Factor.

What are the other ways to Calculate Equivalent Weight?

Here are the different ways to Calculate Equivalent Weight-

Equivalent Weight=Molar Mass of Acid/Acidity
Equivalent Weight=Molar Mass of Base/Basicity
Equivalent Weight=Molar Mass of a chemical compound/Number of Moles of Electrons Gained

Can the Equivalent Weight be negative?

Yes, the Equivalent Weight, measured in Weight can be negative.

Which unit is used to measure Equivalent Weight?

Equivalent Weight is usually measured using the Gram[g] for Weight. Kilogram[g], Milligram[g], Ton (Metric)[g] are the few other units in which Equivalent Weight can be measured.

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Equivalent Weight Formula

​GoEquivalent Weight for Acids Formula

​GoEquivalent weight for base Formula

Equivalent Weight Example

Equivalent Weight Solution

Equivalent Weight Formula Elements

Other Formulas to find Equivalent Weight

Other formulas in Equivalent Weight category

How to Evaluate Equivalent Weight?

FAQs on Equivalent Weight

Variable Name

GoEquivalent Weight for Acids Formula

GoEquivalent weight for base Formula