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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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Verifiers
Verifier numbers EAN-13 preview
Verifier numbers EAN-13
Calculator allows you to verify the number entered EAN-13.
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Life
Freezing sea water
Calculator based on the average salinity of the basin are calculated freezing point of the water content by the formula Krummel.
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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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Legal
Calculator notary fees in Poland
Calculator allows you to calculate the amount of fees that have to be incurred by a notary and an intermediary for the purchase of real estate.
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Building
Insulation of wall
Jak policzyć izolację ścian?
Calculator allows you to calculate the amount of insulation panels needed to cover the walls of the building using the "light wet" or "dry light" methods.