Specific Activity of Isotope Solution

STEP 0: Pre-Calculation Summary
Formula Used
Specific Activity = (Activity* [Avaga-no])/Atomic Weight of Nuclide
As = (λ* [Avaga-no])/M
This formula uses 1 Constants, 3 Variables
Constants Used
[Avaga-no] - Avogadro’s number Value Taken As 6.02214076E+23
Variables Used
Specific Activity - (Measured in Becquerel per Kilogram) - Specific Activity is defined as the concentration of the radioactivity or the relationship between the mass of radioactive material and the activity.
Activity - (Measured in Becquerel) - Activity of Radioactive Substance is the Number of atoms disintegrated in unit time. It is also called as the rate of disintegration.
Atomic Weight of Nuclide - (Measured in Kilogram) - Atomic Weight of Nuclide is defined as the total number of protons and neutrons in the nucleus of an isotope of the nuclide.
STEP 1: Convert Input(s) to Base Unit
Activity: 0.0011 Disintegrations per Second --> 0.0011 Becquerel (Check conversion here)
Atomic Weight of Nuclide: 125 Atomic Mass Unit --> 2.07567525023271E-25 Kilogram (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
As = (λ* [Avaga-no])/M --> (0.0011* [Avaga-no])/2.07567525023271E-25
Evaluating ... ...
As = 3.19142160376838E+45
STEP 3: Convert Result to Output's Unit
3.19142160376838E+45 Becquerel per Kilogram -->3.19142160376838E+42 Becquerel per Gram (Check conversion here)
FINAL ANSWER
3.19142160376838E+42 3.2E+42 Becquerel per Gram <-- Specific Activity
(Calculation completed in 00.004 seconds)

Credits

Created by Pracheta Trivedi
National Institute Of Technology Warangal (NITW), Warangal
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Verified by Soupayan banerjee
National University of Judicial Science (NUJS), Kolkata
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25 Nuclear Chemistry Calculators

Direct Isotope Dilution Analysis (DIDA)
Go Unknown Amount of Compound present in Sample = Labelled Compound present in Sample*((Specific Activity of Pure Labelled Compound-Specific Activity of Mixed Compound)/Specific Activity of Mixed Compound)
Inverse Isotope Dilution Analysis (IIDA)
Go Unknown Amount of Active Compound = Amount of Inactive Isotope of Same Compound*(Specific Activity of Mixed Compound/(Specific Activity of Pure Labelled Compound-Specific Activity of Mixed Compound))
Sub-Stoichiometric Isotope Dilution Analysis (SSIA)
Go Amount of Compound in Unknown Solution = Amount of Compound in Stock Solution*((Specific Activity of Stock Solution-Specific Activity of Mixed Solution)/Specific Activity of Mixed Solution)
Age of Minerals and Rocks
Go Age of Mineral and Rocks = Total Number of Radiogenic Lead Atom/((1.54*(10^(-10))*Number of U-238 present in Mineral/Rock Sample)+(4.99*(10^(-11))*Number of Th-232 present in Mineral/Rock Sample))
Age of Plant or Animal
Go Age of Plant or Animal = (2.303/Disintegration Constant of 14C)*(log10(Activity of 14C in Original Animals or Plants/Activity of 14C in Old Wood or Animal Fossil))
Age of Minerals and Rocks containing Pure Thorium and Pb-208
Go Age of Mineral and Rocks for Pure Th/Pb-208 system = 46.2*(10^9)*log10(1+(1.116*Number of Pb-208 present in Mineral/Rock Sample)/Number of Th-232 present in Mineral/Rock Sample)
Age of Minerals and Rocks containing Pure Uranium and Pb-206
Go Age of Mineral and Rocks for Pure U/Pb-206 system = 15.15*(10^9)*log10(1+(1.158*Number of Pb-206 present in Mineral/Rock Sample)/Number of U-238 present in Mineral/Rock Sample)
Determination of Age of Minerals and Rocks using Rubidium-87/ Strontium Method
Go Time taken = 1/Decay Constant for Rb-87 to Sr-87*((Ratio of Sr-87/Sr-86 at Time t-Initial Ratio of Sr-87/Sr-86)/Ratio of Rb-87/Sr-86 at Time t)
Threshold Kinetic Energy of Nuclear Reaction
Go Threshold Kinetic Energy of Nuclear Reaction = -(1+(Mass of Projectile Nuclei/Mass of Target Nuclei))*Reaction Energy
Neutron Activation Analysis (NAA)
Go Weight of Particular Element = Atomic Weight of Element/[Avaga-no]*Specific Activity at Time t
Amount of Substance left after n Half Lives
Go Amount of Substance Left After n Half Lives = ((1/2)^Number of Half Lives)*Initial Concentration of Radioactive Substance
Packing Fraction (In Isotopic mass)
Go Packing Fraction in Isotopic mass = ((Atomic Isotopic Mass-Mass Number)*(10^4))/Mass Number
Specific Activity using Half Life
Go Specific Activity = (0.693*[Avaga-no])/(Radioactive Half Life*Atomic Weight of Nuclide)
Specific Activity of Isotope
Go Specific Activity = (Activity* [Avaga-no])/Atomic Weight of Nuclide
Q-value of Nuclear Reaction
Go Q Value of Nuclear Reaction = (Mass of Product-Mass of Reactant)*931.5*10^6
Amount of Substance Left after Three Half Lives
Go Amount of Substance Left After Three Half Lives = Initial Concentration of Radioactive Substance/8
Amount of Substance Left after Two Half Lives
Go Amount of Substance Left After Two Half Lives = (Initial Concentration of Radioactive Substance/4)
Molar Activity using Half Life
Go Molar Activity = (0.693*[Avaga-no])/(Radioactive Half Life)
Binding Energy Per Nucleon
Go Binding Energy per Nucleon = (Mass Defect*931.5)/Mass Number
Number of Half Lives
Go Number of Half Lives = Total Time/Half Life
Packing Fraction
Go Packing Fraction = Mass Defect/Mass Number
Molar Activity of Compound
Go Molar Activity = Activity*[Avaga-no]
Radius of Nuclei
Go Radius of Nuclei = (1.2*(10^-15))*((Mass Number)^(1/3))
Radioactive Half Life
Go Radioactive Half Life = 0.693*Mean Life Time
Mean Life Time
Go Mean Life Time = 1.446*Radioactive Half Life

Specific Activity of Isotope Formula

Specific Activity = (Activity* [Avaga-no])/Atomic Weight of Nuclide
As = (λ* [Avaga-no])/M

What is Radioactivity ?

Radioactivity is the phenomenon of the spontaneous disintegration of unstable atomic nuclei to form more energetically stable atomic nuclei.

How to Calculate Specific Activity of Isotope?

Specific Activity of Isotope calculator uses Specific Activity = (Activity* [Avaga-no])/Atomic Weight of Nuclide to calculate the Specific Activity, Specific Activity of Isotope is defined as the concentration of radioactivity or the relationship between the mass of radioactive material and the activity. Specific Activity is denoted by As symbol.

How to calculate Specific Activity of Isotope using this online calculator? To use this online calculator for Specific Activity of Isotope, enter Activity (λ) & Atomic Weight of Nuclide (M) and hit the calculate button. Here is how the Specific Activity of Isotope calculation can be explained with given input values -> 3.2E+39 = (0.0011* [Avaga-no])/2.07567525023271E-25.

FAQ

What is Specific Activity of Isotope?
Specific Activity of Isotope is defined as the concentration of radioactivity or the relationship between the mass of radioactive material and the activity and is represented as As = (λ* [Avaga-no])/M or Specific Activity = (Activity* [Avaga-no])/Atomic Weight of Nuclide. Activity of Radioactive Substance is the Number of atoms disintegrated in unit time. It is also called as the rate of disintegration & Atomic Weight of Nuclide is defined as the total number of protons and neutrons in the nucleus of an isotope of the nuclide.
How to calculate Specific Activity of Isotope?
Specific Activity of Isotope is defined as the concentration of radioactivity or the relationship between the mass of radioactive material and the activity is calculated using Specific Activity = (Activity* [Avaga-no])/Atomic Weight of Nuclide. To calculate Specific Activity of Isotope, you need Activity (λ) & Atomic Weight of Nuclide (M). With our tool, you need to enter the respective value for Activity & Atomic Weight of Nuclide 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 Specific Activity?
In this formula, Specific Activity uses Activity & Atomic Weight of Nuclide. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Specific Activity = (0.693*[Avaga-no])/(Radioactive Half Life*Atomic Weight of Nuclide)
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