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The Ideal Gas Law Formula

The three laws of the behavior of the gas are discribe with the Boyle’s, Charles’s, and Avogadro’s law as mention below:

Boyle’s law (at constant T and n )

Charles’s law (at constant P and V)

Avogadro’s law ( at constant T and P)

The relationships in which the volume of the gas that depends on pressure, temperature, and the number of moles of gas can be write as:

the equation above can be writen as :

the equation above more familiar called “The Ideal Gas law”

P = pressure in atm
V = volume in Liter
n = number of moles in mol
R = universal gas constant = 0.08205 L.atm/K.mol

The ideal gas law can be used to solved a variety of problems. You can find one of the characteristic of the gas if the other three is known.

Add comment June 8th, 2008

The Titration Formula

This is the very simple formula for you to calculate the problems that involve the titration. Just always to remember that in titration “mole equivalent of titrant in the equivalent point is equal to the mole equivalent of analyte”, using this statement we can write:

N is the Normality
V is the volume of the solution

Because normality (N) is n x M, thus the formula above can be written as,

n is the total of H+ or OH- in acid base titration, or the total of electrons that release or gain in the redox titration.

Add comment April 26th, 2008