Selectivity Calculator

✖Moles of Desired Product tells about the total moles of desired product formed.ⓘ Moles of Desired Product [M_Desired]			+10% -10%
✖Moles of Undesired Product formed tells about the total moles of undesired product formed.ⓘ Moles of Undesired Product formed [M_Undesired]			+10% -10%

✖Selectivity of a reaction is the ratio of the desired product formed (in moles) to the undesired product formed (in moles).ⓘ Selectivity [S]

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Formula

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Selectivity

Formula

`"S" = ("M"_{"Desired"}/"M"_{"Undesired"})*100`

Example

`"57.5"=("23mol"/"40mol")*100`

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Selectivity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Selectivity = (Moles of Desired Product/Moles of Undesired Product formed)*100
S = (M_Desired/M_Undesired)*100
This formula uses 3 Variables

Variables Used

Selectivity - Selectivity of a reaction is the ratio of the desired product formed (in moles) to the undesired product formed (in moles).
Moles of Desired Product - (Measured in Mole) - Moles of Desired Product tells about the total moles of desired product formed.
Moles of Undesired Product formed - (Measured in Mole) - Moles of Undesired Product formed tells about the total moles of undesired product formed.

STEP 1: Convert Input(s) to Base Unit

Moles of Desired Product: 23 Mole --> 23 Mole No Conversion Required
Moles of Undesired Product formed: 40 Mole --> 40 Mole No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

S = (M_Desired/M_Undesired)*100 --> (23/40)*100

Evaluating ... ...

S = 57.5

STEP 3: Convert Result to Output's Unit

57.5 --> No Conversion Required

FINAL ANSWER

57.5 <-- Selectivity

(Calculation completed in 00.004 seconds)

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Created by Ayush gupta

University School of Chemical Technology-USCT (GGSIPU), New Delhi

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< 14 Basic Formulas Calculators

Pressure using Virial Equation of State

Go Absolute Pressure = (1/Specific Volume)*(([R]*Temperature)+(Pressure*Virial Coefficient))

Extent of Reaction given Number of Moles Initially and at Equilibrium

Go Extent of Reaction = ((Number of Moles at Equilibrium-Initial Number of Moles)/Stoichiometric Coefficient for i-th Component)

Number of Moles Initially given Extent of Reaction

Go Initial Number of Moles = (Number of Moles at Equilibrium-(Stoichiometric Coefficient for i-th Component*Extent of Reaction))

Number of Moles at Equilibrium given Extent of Reaction

Go Number of Moles at Equilibrium = Initial Number of Moles+(Stoichiometric Coefficient for i-th Component*Extent of Reaction)

Pressure by Ideal Gas Law

Go Pressure of Gas = (Number of Moles*[R]*Temperature of Gas)/Volume of Gas

Overall Conversion in Recycle Process

Go Overall Conversion = ((Amount of Fresh Feed-Amount of Net Product)/Amount of Fresh Feed)*100

Extent of Reaction given Change in Number of Moles

Go Extent of Reaction = (Change in Number of Moles/Stoichiometric Coefficient for i-th Component)

Change in Number of Moles due to Reaction

Go Change in Number of Moles = (Stoichiometric Coefficient for i-th Component*Extent of Reaction)

Number of Gram-Atoms of Element

Go Number of Gram-Atoms of Element = Number of Grams of Element/Average Molecular Weight

Selectivity

Go Selectivity = (Moles of Desired Product/Moles of Undesired Product formed)*100

Overall Material Balance for Crystallizer

Go Feed Solution = Weight of Saturated Solution+Yield of Crystals

Mass Fraction of Species A

Go Mass Fraction = Mass of Species A/Total Mass of Molecule

Vacuum Pressure

Go Vacuum Pressure = Atmospheric Pressure-Absolute Pressure

Gauge Pressure

Go Gauge Pressure = Absolute Pressure-Atmospheric Pressure

Selectivity Formula

Selectivity = (Moles of Desired Product/Moles of Undesired Product formed)*100
S = (M_Desired/M_Undesired)*100

What is Chemical Plant?

A chemical plant is an industrial process plant that manufactures chemicals, usually on a large scale. The general objective of a chemical plant is to create new material wealth via the chemical or biological transformation and or separation of materials.

What is Chemical Process?

A chemical process is generally understood to be any discernable portion of chemical manufacturing during which feedstocks are acted upon to introduce a chemical change to the feedstock in order to convert it to a desired product.

How to Calculate Selectivity?

Selectivity calculator uses Selectivity = (Moles of Desired Product/Moles of Undesired Product formed)*100 to calculate the Selectivity, The Selectivity formula is defined as ratio of the desired product formed (in moles) to the undesired product formed (in moles). Selectivity is denoted by S symbol.

How to calculate Selectivity using this online calculator? To use this online calculator for Selectivity, enter Moles of Desired Product (M_Desired) & Moles of Undesired Product formed (M_Undesired) and hit the calculate button. Here is how the Selectivity calculation can be explained with given input values -> 57.5 = (23/40)*100.

FAQ

What is Selectivity?

The Selectivity formula is defined as ratio of the desired product formed (in moles) to the undesired product formed (in moles) and is represented as S = (M_Desired/M_Undesired)*100 or Selectivity = (Moles of Desired Product/Moles of Undesired Product formed)*100. Moles of Desired Product tells about the total moles of desired product formed & Moles of Undesired Product formed tells about the total moles of undesired product formed.

How to calculate Selectivity?

The Selectivity formula is defined as ratio of the desired product formed (in moles) to the undesired product formed (in moles) is calculated using Selectivity = (Moles of Desired Product/Moles of Undesired Product formed)*100. To calculate Selectivity, you need Moles of Desired Product (M_Desired) & Moles of Undesired Product formed (M_Undesired). With our tool, you need to enter the respective value for Moles of Desired Product & Moles of Undesired Product formed and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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