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Reaction Quotient Formula

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The reaction quotient (Q) measures the relative amounts of products and reactants present during a reaction at a particular point in time. Check FAQs

Q = \frac{({C C}^{c}) \cdot ({C D}^{d})}{({C A}^{a}) \cdot ({C B}^{b})}

Q - Reaction Quotient?C_C - Concentration of C?c - No. of Moles of C?C_D - Concentration of D?d - No. of Moles of D?C_A - Concentration of A?a - Number of Moles of A?C_B - Concentration of B?b - No. of Moles of B?

Reaction Quotient Example

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Here is how the Reaction Quotient equation looks like with Values.

Here is how the Reaction Quotient equation looks like with Units.

Here is how the Reaction Quotient equation looks like.

49.462 = \frac{(18^{9}) \cdot (22^{7})}{({1.62}^{17}) \cdot (14^{3})}

49.462 = \frac{({18mol/L}^{9}) \cdot ({22mol/L}^{7})}{({1.62mol/L}^{17}) \cdot ({14mol/L}^{3})}

49.462 = \frac{(18^{9}) \cdot (22^{7})}{({1.62}^{17}) \cdot (14^{3})}

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Reaction Quotient Solution

Follow our step by step solution on how to calculate Reaction Quotient?

FIRST Step Consider the formula

Q = \frac{({C C}^{c}) \cdot ({C D}^{d})}{({C A}^{a}) \cdot ({C B}^{b})}

Next Step Substitute values of Variables

∴

Q = \frac{({18mol/L}^{9}) \cdot ({22mol/L}^{7})}{({1.62mol/L}^{17}) \cdot ({14mol/L}^{3})}

Next Step Convert Units

∴

Q = \frac{({18000mol/m³}^{9}) \cdot ({22000mol/m³}^{7})}{({1620mol/m³}^{17}) \cdot ({14000mol/m³}^{3})}

Next Step Prepare to Evaluate

∴

Q = \frac{(18000^{9}) \cdot (22000^{7})}{(1620^{17}) \cdot (14000^{3})}

Next Step Evaluate

∴

Q = 49.462032380513

LAST Step Rounding Answer

∴

Q = 49.462

Reaction Quotient Formula Elements

Variables

Reaction Quotient

The reaction quotient (Q) measures the relative amounts of products and reactants present during a reaction at a particular point in time.

Symbol: Q

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Reaction Quotient

Concentration of C

Concentration of C is the molar concentration of reactant substance C at any stage during the progress of the reaction.

Symbol: C_C

Measurement: Molar ConcentrationUnit: mol/L

Note: Value can be positive or negative.

Formulas to find Concentration of C

No. of Moles of C

No. of Moles of C is the no. of moles of product C present in the equilibrium mixture.

Symbol: c

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find No. of Moles of C

Concentration of D

Concentration of D is the molar concentration of reactant substance D at any stage during the progress of the reaction.

Symbol: C_D

Measurement: Molar ConcentrationUnit: mol/L

Note: Value can be positive or negative.

Formulas to find Concentration of D

No. of Moles of D

No. of Moles of D is the no. of moles of product D present in the equilibrium mixture.

Symbol: d

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find No. of Moles of D

Concentration of A

Concentration of A is the molar concentration of reactant substance A at any stage during the progress of the reaction.

Symbol: C_A

Measurement: Molar ConcentrationUnit: mol/L

Note: Value can be positive or negative.

Formulas to find Concentration of A

Number of Moles of A

Number of Moles of A is the no. of moles of reactant A present in the equilibrium mixture.

Symbol: a

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Number of Moles of A

Concentration of B

Concentration of B is the molar concentration of reactant substance B at any stage during the progress of the reaction.

Symbol: C_B

Measurement: Molar ConcentrationUnit: mol/L

Note: Value can be positive or negative.

Formulas to find Concentration of B

No. of Moles of B

No. of Moles of B is the no. of moles of reactant B present in the equilibrium mixture.

Symbol: b

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find No. of Moles of B

Other formulas in Properties of Equilibrium Constant category

Go Equilibrium Constant for Reaction when Multiplied with Integer

K'' c = ({K c}^{n})

Go Equilibrium Constant for Reverse Reaction

K' c = \frac{({Eq conc A}^{a}) \cdot ({Eq conc B}^{b})}{({Eq conc C}^{c}) \cdot ({Eq conc D}^{d})}

How to Evaluate Reaction Quotient?

Reaction Quotient evaluator uses Reaction Quotient = ((Concentration of C^No. of Moles of C)*(Concentration of D^No. of Moles of D))/((Concentration of A^Number of Moles of A)*(Concentration of B^No. of Moles of B)) to evaluate the Reaction Quotient, The Reaction quotient formula is defined as the ratio of molar concentrations of products to the concentration of reactants. Reaction Quotient is denoted by Q symbol.

How to evaluate Reaction Quotient using this online evaluator? To use this online evaluator for Reaction Quotient, enter Concentration of C (C_C), No. of Moles of C (c), Concentration of D (C_D), No. of Moles of D (d), Concentration of A (C_A), Number of Moles of A (a), Concentration of B (C_B) & No. of Moles of B (b) and hit the calculate button.

FAQs on Reaction Quotient

What is the formula to find Reaction Quotient?

The formula of Reaction Quotient is expressed as Reaction Quotient = ((Concentration of C^No. of Moles of C)*(Concentration of D^No. of Moles of D))/((Concentration of A^Number of Moles of A)*(Concentration of B^No. of Moles of B)). Here is an example- 8.1E-14 = ((18000^9)*(22000^7))/((1620^17)*(14000^3)).

How to calculate Reaction Quotient?

With Concentration of C (C_C), No. of Moles of C (c), Concentration of D (C_D), No. of Moles of D (d), Concentration of A (C_A), Number of Moles of A (a), Concentration of B (C_B) & No. of Moles of B (b) we can find Reaction Quotient using the formula - Reaction Quotient = ((Concentration of C^No. of Moles of C)*(Concentration of D^No. of Moles of D))/((Concentration of A^Number of Moles of A)*(Concentration of B^No. of Moles of B)).

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Reaction Quotient Formula

Reaction Quotient Example

Reaction Quotient Solution

Reaction Quotient Formula Elements

Other formulas in Properties of Equilibrium Constant category

How to Evaluate Reaction Quotient?

FAQs on Reaction Quotient

Variable Name