CHEM 120 Lecture Notes - Lecture 3: Ideal Gas, Molar Mass, Gas Laws

• School: McGill University
• Department: Chemistry
• Course: CHEM 120
• Professor: Bradley Siwick

Document Summary

Chem 110 lecture 3 ideal gas laws. Molar mass of a gas: we can rewrite the ideal gas laws in terms of mass (m) and molecular weight (m) rather than number of moles of gas (n, pv=nrt, n=m/m. Gas density: d=m/v, pv=mrt/m, m/v = pm/rt = d. Gases in chemical reactions: gay-ussac"s law, 1808, gases react in volumes proportional to small whole numbers, assuming reactants and products are at the same t and p, volumes are proportional to coefficients in chemical equations.