Set up your conversion factors so that units cancel out diagonally.
In 90% of chemistry problems, the first step is converting your given mass or volume into moles . Moles are the universal currency of chemistry; once you have them, you can go anywhere. Solving General Chemistry Problems
Write down every number given, including its unit. Units are your best friends—they tell you what the number actually represents. Set up your conversion factors so that units
For gas laws or calorimetry, a quick sketch of the container or system can help you visualize which way energy or particles are moving. once you have them
Does the problem mention "STP" or a specific gas? You might need the Ideal Gas Constant ( ) or molar masses from the periodic table. 2. Map the Path (Dimensional Analysis)