Common Chemistry Equations


Density:
where m is the mass of a substance and V is its volume
Charles’s Law:
where V is volume, k is Boltzmann’s constant, and T is the temperature in Kelvin
Ideal Gas Equation:
where P is pressure, V is volume, n is the number of moles of gas, R is the gas constant, and T is the temperature in Kelvin
Molarity:
where n is the number of moles of solute and V is the volume of solution in liters
Molarity equation:
where M1 is the initial molarity of a solution, V1 is its initial volume, M2 is its diluted molarity, and V2 is its diluted volume
Molality:
where n is the number of moles of solute and ms is the mass of solvent in kilograms
pH:
where H+ is the concentration of hydronium ions (H3O+) in the solution


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