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.

30716

Chemical

Molar concentration of mass and volume

Calculator allows to determine the molar concentration of the solution.

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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

Air conditioning calculator

Calculator helps you calculate the estimated power consumption for room air conditioner with the specified size and the number of people working in the space.

18118

Legal

Legal calculator

Calculates the effective date of the act, published in the official journal.

32748

Life

Calculator altitude clouds

Calculator allows you to calculate the amount of clouds and the temperature based on air temperature and dew point. Long description

20348

Verifiers

Verifier numbers EAN-8 preview

Verifier numbers EAN-8 Calculator allows you to verify the number entered EAN-8.