Chapter 11: Molecular Compositions Of Gases Flashcards
Why was the problem with the ratios of the rxns ?
They didn’t add up
What 2 rxns did Joseph Gay Lusaac study?
H2+O2—> water vapor
2. 1. 2.
H2+cl2=hcl
1. 1. 2
State Gays law of combining volumes of gases
At constant T and P the V of gaseous reactants and their products can be expressed as ratios of small who numbers
Which idea of Daltans did Avogadro reject?
The all atoms were individual particles
What did Avogadro Hypothesize instead?
That some of these particles existed as pairs and were called Diatomic
State avogandros law
Equal volumes of gases at the same T and P contain equal numbers of molecules
How did avogandros define diatomic gases?
As elements that are gases at room T not including Noble gases
What is Standard Molar volume and what are the values
The volume of 1 mom of any gas at STP
22.4L 22400ml (cc cm3 dm3)
1mol/22.4L
How do you use the ideal gas law to find molar volume
PV=mRT where m is actual mass of gas/molar mass of the gas
M=mRT/PV
