General Chemistry I (CHEM 101) Gas Laws, Partial Pressure, and Unit Conversions Practice Problems
University of Florida
General Chemistry I (CHEM 101) | Practice Problems

Overview
A quick-turn practice packet for finals week on ideal gas law setups, Boyle/Charles/Gay-Lussac relationships, Dalton partial pressures, and the unit conversions students most often miss.

Key topics
•PV=nRT with unit discipline
•combined gas law shortcuts
•Dalton partial pressures and mole fraction
•STP and density-molar mass links
•temperature and pressure unit conversions

Suggested study tasks
•solve 10 PV=nRT problems with full units shown
•convert between atm kPa mmHg and identify the correct R constant
•do 5 partial-pressure problems using mole fraction
•compute gas density or molar mass from PV=nRT
•create a one-page conversion table and use it on a timed set

Common pitfalls
•mixing units for pressure and volume (and using the wrong R)
•forgetting to convert Celsius to Kelvin
•dropping significant figures inconsistently
•confusing total pressure with partial pressure
•using STP values without checking the problem statement