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Chemical
Radioactive decay
The calculator calculates how much radioactive material remains after a certain period of time.
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Chemical
Calculator enthalpy
Enthalpy calculator is used to calculate the heat transfer during the process kwazistatycznego occurring in a closed thermodynamic system under constant pressure (isobaric process).
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Chemical
Dilution of solutions
Legend of given volume and calculates the concentrations of the solutions before and after dilution of the volume of solution added is calculated.
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Chemical
Molar concentration of mass and volume
Calculator allows to determine the molar concentration of the solution.
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Math
Roots of a quadratic equation
Calculator based on the entered coefficients calculated roots of a quadratic equation.
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Medical
Alcoholic hepatitis - Maddreya prognostic indicator (DF):
Calculator to the data calculates the Maddreya that helps assess the stage of the disease - alcoholic hepatitis.
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Verifiers
NIP correctness in Poland
Jak sprawdzić poprawność numeru NIP?
Verifier allows you to validate the tax identification number entered
35526
Math
Field and circumference of a circle
Jak obliczyć pole i obwód koła?
The calculator based on the specified radius of the area and perimeter of a circle.