A set of calculators for use in chemistry.

Molar Mass Calculator

In chemistry, the Molar Mass is a physical property that is defined as the mass of a substance divided by the amount of the substance. This calculator solves for the molar mass of a chemical formula and the mass percent of each element in the formula.

Example
The chemical formula for magnesium stearate, a compound found in some medical tablets, is $\displaystyle Mg \left(CH_3 \left(CH_2 \right)_{16}CO_2 \right)_2$ and would be entered below as Mg(CH3(CH2)16CO2)2.

Element Atoms Mass In Compound
(g / mol)
Mass Percent
Total: 0 0.0000

Dilution Calculator

The Dilution Formula calculates a required value to achieve the specified concentration. This calculator uses the formula $M_1 \times V_1 = M_2 \times V_2$ where $M_1$ and $M_2$ are the molarity of the solutions and $V_1$ and $V_2$ are the volumes of the solutions. Please only enter valid numbers and leave one value blank.

$\displaystyle M_1 \times V_1 = M_2 \times V_2$

Ideal Gas Law Calculator

The Ideal Gas Law is the equation for a hypothetical ideal gas. It is used to predict certain measurements of a gas under normal conditions. This calculator uses the formula $PV = nRT$ to accurately tell the pressure $\left(P\right)$, volume $\left(V\right)$, number of moles $\left(n\right)$, or the temperature $\left(T\right)$. In this equation, $R$ is the ideal, or universal, gas constant. It is derived from the Combined Gas Law, (which explores the relationship between temperature, pressure and volume) and Avogadro's Law (which states that under the same conditions of temperature and pressure, the same volume of all gases contains the same number of molecules). Please only enter valid numbers and leave one value blank.

$\displaystyle PV = nRT$

Gas Constant in SI Units $\displaystyle \left(R\right) = 8.3144621 \frac{J}{mol \times K}$

Specific Heat Capacity Calculator

The Specific Heat Capacity of a substance is defined as the amount of energy needed to raise the temperature of the substance by a given amount. This calculator uses the equation $Q = mC_p\Delta T$ where $Q$ is the amount of energy, $m$ is the mass of the substance, $C_p$ is the specific heat capacity, and $\Delta T$ is the change in temperature.

$\displaystyle Q = mC_p\Delta T$