Rate Constant of First Order Reaction using Logarithm to base 10 Solution

STEP 0: Pre-Calculation Summary
Formula Used
Rate Constant for First Order Reaction = 2.303/Time for completion*log10(Initial Concentration for First Order Reaction/Concentration at Time t)
kfirst = 2.303/tcompletion*log10(A0/Ct)
This formula uses 1 Functions, 4 Variables
Functions Used
log10 - The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function., log10(Number)
Variables Used
Rate Constant for First Order Reaction - (Measured in 1 Per Second) - The Rate Constant for First Order Reaction is defined as the rate of the reaction divided by the concentration of the reactant.
Time for completion - (Measured in Second) - The Time for completion is defined as the time required for a complete transformation of reactant into the product.
Initial Concentration for First Order Reaction - (Measured in Mole per Cubic Meter) - The Initial Concentration for First Order Reaction is the amount of reactant present before the start of the reaction.
Concentration at Time t - (Measured in Mole per Cubic Meter) - The Concentration at Time t is the amount of species formed or reacted in that particular time.
STEP 1: Convert Input(s) to Base Unit
Time for completion: 4.3 Second --> 4.3 Second No Conversion Required
Initial Concentration for First Order Reaction: 7.5 Mole per Liter --> 7500 Mole per Cubic Meter (Check conversion ​here)
Concentration at Time t: 0.8 Mole per Liter --> 800 Mole per Cubic Meter (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
kfirst = 2.303/tcompletion*log10(A0/Ct) --> 2.303/4.3*log10(7500/800)
Evaluating ... ...
kfirst = 0.520569732453172
STEP 3: Convert Result to Output's Unit
0.520569732453172 1 Per Second --> No Conversion Required
FINAL ANSWER
0.520569732453172 0.52057 1 Per Second <-- Rate Constant for First Order Reaction
(Calculation completed in 00.004 seconds)

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First Order Reaction Calculators

Time for Completion for First Order given Rate Constant and Initial Concentration
​ LaTeX ​ Go Time for completion = 2.303/Rate Constant for First Order Reaction*log10(Initial Concentration for First Order Reaction/Concentration at Time t)
Rate Constant of First Order Reaction using Logarithm to base 10
​ LaTeX ​ Go Rate Constant for First Order Reaction = 2.303/Time for completion*log10(Initial Concentration for First Order Reaction/Concentration at Time t)
Time for Completion of First Order Reaction
​ LaTeX ​ Go Time for completion = 2.303/Rate Constant for First Order Reaction*log10(Initial Reactant A Concentration/Concentration at Time t of Reactant A)
Half Time Completion of First Order Reaction
​ LaTeX ​ Go Half Time = 0.693/Rate Constant for First Order Reaction

Rate Constant of First Order Reaction using Logarithm to base 10 Formula

​LaTeX ​Go
Rate Constant for First Order Reaction = 2.303/Time for completion*log10(Initial Concentration for First Order Reaction/Concentration at Time t)
kfirst = 2.303/tcompletion*log10(A0/Ct)

What is first-order reaction?

In the first-order reaction, the rate of reaction is proportional to the first power of the concentration of the reactant. The concentration of the reactant in the first-order reaction decreases exponentially with time.

How to Calculate Rate Constant of First Order Reaction using Logarithm to base 10?

Rate Constant of First Order Reaction using Logarithm to base 10 calculator uses Rate Constant for First Order Reaction = 2.303/Time for completion*log10(Initial Concentration for First Order Reaction/Concentration at Time t) to calculate the Rate Constant for First Order Reaction, The Rate Constant of First Order Reaction using Logarithm to base 10 formula is defined as the rate of the reaction per concentration of the reactant. The formula is the logarithm to the base 10 of initial concentration per concentration at the time t, the whole is divided by the time required for the completion of the reaction. Rate Constant for First Order Reaction is denoted by kfirst symbol.

How to calculate Rate Constant of First Order Reaction using Logarithm to base 10 using this online calculator? To use this online calculator for Rate Constant of First Order Reaction using Logarithm to base 10, enter Time for completion (tcompletion), Initial Concentration for First Order Reaction (A0) & Concentration at Time t (Ct) and hit the calculate button. Here is how the Rate Constant of First Order Reaction using Logarithm to base 10 calculation can be explained with given input values -> 0.223845 = 2.303/4.3*log10(7500/800).

FAQ

What is Rate Constant of First Order Reaction using Logarithm to base 10?
The Rate Constant of First Order Reaction using Logarithm to base 10 formula is defined as the rate of the reaction per concentration of the reactant. The formula is the logarithm to the base 10 of initial concentration per concentration at the time t, the whole is divided by the time required for the completion of the reaction and is represented as kfirst = 2.303/tcompletion*log10(A0/Ct) or Rate Constant for First Order Reaction = 2.303/Time for completion*log10(Initial Concentration for First Order Reaction/Concentration at Time t). The Time for completion is defined as the time required for a complete transformation of reactant into the product, The Initial Concentration for First Order Reaction is the amount of reactant present before the start of the reaction & The Concentration at Time t is the amount of species formed or reacted in that particular time.
How to calculate Rate Constant of First Order Reaction using Logarithm to base 10?
The Rate Constant of First Order Reaction using Logarithm to base 10 formula is defined as the rate of the reaction per concentration of the reactant. The formula is the logarithm to the base 10 of initial concentration per concentration at the time t, the whole is divided by the time required for the completion of the reaction is calculated using Rate Constant for First Order Reaction = 2.303/Time for completion*log10(Initial Concentration for First Order Reaction/Concentration at Time t). To calculate Rate Constant of First Order Reaction using Logarithm to base 10, you need Time for completion (tcompletion), Initial Concentration for First Order Reaction (A0) & Concentration at Time t (Ct). With our tool, you need to enter the respective value for Time for completion, Initial Concentration for First Order Reaction & Concentration at Time t and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Rate Constant for First Order Reaction?
In this formula, Rate Constant for First Order Reaction uses Time for completion, Initial Concentration for First Order Reaction & Concentration at Time t. We can use 3 other way(s) to calculate the same, which is/are as follows -
  • Rate Constant for First Order Reaction = 0.693/Half Time
  • Rate Constant for First Order Reaction = (2.303/Time for completion)*log10(Initial Reactant Volume/Volume at Time t)
  • Rate Constant for First Order Reaction = 1/Average time
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