Avogrado's hypothesis

What does Avogrado's hypothesis state?

• Equal volumes of gases contain different numbers of molecules, depending of the gas

• Equal volumes of gases, at the same temperature and pressure, contain the same number of molecules

• The mass of a gas depends on it's volume and temperature

• The number of molecules in a gas is proportional to it's density

According to Avogrado's hypothesis, equal volume of gases at the same temperature and pressure contain the same number of...?

Which of the following conditions must be the same for Avogrado's hypothesis to apply?

• Temperature and pressure

• Mass and volume

• Pressure and density

• Temperature and density

What does Avogrado's hypothesis say about gases?

• Gases always have the same weight

• Gases in the same container have the same molecules

• Equal volumes of gases at the same temperature and pressure have the same number of molecules

• Gases always fill the same space

Avogrado's hypothesis compares ... volumes of gases under the same conditions

Avogrado's hypothesis explains the relationship between gas volume and...?

• Number of molecules

• Gas pressure

• Speed of gas

• Colour of the gas

The number of molecules in one mole is called...'s number

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Why is Avogrado's hypothesis important in chemistry?

• It helps count the number if molecules in liquids

• It explains why gases behave differently at high temperature

• It shows that gases of the same volume have the same number of molecules under the same conditions

• It helps calculate gas density

12.5 liters of oxygen (o2) gas are completedly burned according to the following :

2 C2H2(g)= 5 O2 (g) -> 4CO2(g) + 2H2O

What is the volume of acetylene gas (C2H2) needed?

• The volume of acetylene gas (C2H2) needed

• The volume of carbon dioxide that is resulted

• The volume of water resulted