Chemical

The frequency of the relaxation based on the Arrhenius equation

Calculator based on the given temperature, the frequency of vibration and thermal activation energy calculated częsość relaxation.

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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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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.

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Medical

Calculator index of renal failure (Renal Failure Index)

Calculator to the data: the amount of sodium in the urine, serum creatinine and urine of renal failure calculates the RFI.

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Financial

Gross-Net Calculator prices of goods and services in Poland

Jak obliczyć kwotę brutto z uwzględnieniem podatku VAT? Jak obliczyć kwotę netto z uwzględnieniem podatku VAT?

It allows you to calculate the amount of gross or net price including VAT

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Building

Calculator VAT refund for building materials

The calculator calculates the amount of VAT that can be refunded in respect of incurred expenses associated with the purchase of construction materials.

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Building

Calculator floor panels

Calculator based on the dimensions of the area to put the panels and occupancy data on number of panels in one package, calculate how much you have to buy packages of panels to cover the entire room.