Chapter 11: Molecular Compositions Of Gases

Question 0

Why was the problem with the ratios of the rxns ?

Answer 0

They didn’t add up

Question 1

What 2 rxns did Joseph Gay Lusaac study?

Answer 1

H2+O2—> water vapor
2. 1. 2.
H2+cl2=hcl
1. 1. 2

Question 2

State Gays law of combining volumes of gases

Answer 2

At constant T and P the V of gaseous reactants and their products can be expressed as ratios of small who numbers

Question 3

Which idea of Daltans did Avogadro reject?

Answer 3

The all atoms were individual particles

Question 4

What did Avogadro Hypothesize instead?

Answer 4

That some of these particles existed as pairs and were called Diatomic

Question 5

State avogandros law

Answer 5

Equal volumes of gases at the same T and P contain equal numbers of molecules

Question 6

How did avogandros define diatomic gases?

Answer 6

As elements that are gases at room T not including Noble gases

Question 7

What is Standard Molar volume and what are the values

Answer 7

The volume of 1 mom of any gas at STP
22.4L 22400ml (cc cm3 dm3)
1mol/22.4L

Question 8

How do you use the ideal gas law to find molar volume

Answer 8

PV=mRT where m is actual mass of gas/molar mass of the gas

M=mRT/PV