Chapter 11 Molar Comp. Of Gases Flashcards
What was the problem Gay Lussac observed with the ratios?
They werent additive
What reactions did Gay Lussac study?
H2 + O2 = water vapor
H2 + Cl2 = HCl
State Gay Lussacs law if combining volumes of gases
At constant temperature and pressure the volumes of gaseous reactants and their products can be expressed as ratios of small whole numbers
Which idea of Dalton’s did Avogadro reject?
The idea that all atoms were individual particles
What did Avogadro hypothesize?
That some of these particles existed as pairs which he referred to as diatomic
State Avogadro’s Law
Equal volumes of gases at the same temp and pressure contain equal numbers of molecules
How did Avogadro define diatomic gases?
A elements that are gases at room temperature not including noble gases
What is SMV?
Standard Molar Volume
What are units of SMV?
22.4 L and 22400 mL
What is the equation of molar mass?
D x 22.4 L
Iff you are at STP
What is the density equation?
Mass/Volume
What does the Ideal Gas Law describe?
Mathematical relationship between P, V, T, and also mols of a gas
What is the ideal gas law equation?
PV=nRT
What is the value of constant ‘R’ in the ideal gas law formula?
Ideal gas constant/ universal gas constant
What is the value of R?
.0821 atm L/mol K
