Amount of substance (AS)

The Ideal Gas Equation
Formula is pV = nRT
 * p is pressure in Pa (Pascals)
 * V is volume in m3 (metres-cubed)
 * n is moles (no units)
 * R is the gas constant which is 8.31JK-1mol-1 (Note: You do not need to remember this as it will be give to you in the exam)
 * T is temperature in K (Kelvin)

How to work out

 * 1 atm is 100,000 Pa or 101,000 Pa
 * 100 kPa is 100,000 Pa


 * From degrees Celsius°C to K add+273 to the value
 * m3to dm3 multiply by 1,000
 * m3to cm3multiply by 1,000,000
 * Standard conditions is 100,000 Pa and 298K