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Radioactive decay

The calculator calculates how much radioactive material remains after a certain period of time.      
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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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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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Molar concentration of mass and volume

Calculator allows to determine the molar concentration of the solution.            
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The calculator calculates the weighted average of the ratings of the following items.              
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Area of ​​a rectangle

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Whether a number is prime

Checks the user number is a prime number.
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Jak obliczyć objętość walca?
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