Chemical

Ideal gas equation

Calculator based on the ideal gas law gives the value of the variable you want to calculate on the basis of these other variables.

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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

Number of tetrahedral

Tetrahedral numbers are the natural numbers, for which it is possible to construct a tetrahedron formnego of bullets. They are a special case of the pyramidal numbers.

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Math

Combination of characters and numbers

Calculator allows to determine the existing combinations for the user-specified string.

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Math

Volume of the parallelepiped

The calculator allows you to calculate the volume of the parallelepiped.

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Building

Number of wallpapers

Jak oszacować niezbędną ilość tapety?
Ile kupić tapety?
Jak obliczyć ilość tapety potrzebną do wytapetowania pokoju?

Calculator to estimate the necessary amount of wallpaper needed to wytapetowania room of the given dimensions.

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Financial

Calculator selection taxation (global or general rules)

Calculator makes it easier to decide on one of the forms of taxation (lump sum - General)