37102
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
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).
27597
Chemical
Molar concentration of mass and volume
Calculator allows to determine the molar concentration of the solution.
22859
Chemical
Radioactive decay
The calculator calculates how much radioactive material remains after a certain period of time.
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Math
The center point (mid point)
The calculator calculates the coordinates of the point located exactly halfway between two preset points in the two-dimensional plane.
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Math
Number cheerful
Checks the calculator is a large number of so-called gay (Happy Number). Number gay is a natural number is defined as follows: Calculate the sum of squares of digits of the number. Repeat this process for the next results as long as we get the number 1 or the results will be repeated. If you have received as a result of one, the original number is the number of gay. Otherwise, a number bleak.
52758
Verifiers
Verifier numbers EAN-13 preview
Verifier numbers EAN-13
Calculator allows you to verify the number entered EAN-13.
48650
Health
Indicator of body fatness BAI (Body Adiposity Index)
The calculator to the data rate of BAI our body. It is a later invention, and gives a more accurate picture of the state of our body than BMI.